appetize
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C2 verb /ˈæpɪtaɪz/

appetize

食欲をそそる
Meaning
to stimulate the appetite; to make someone eager or interested
Example
The aroma of fresh bread will appetize the guests before dinner.
焼きたてのパンの香りが客の食欲をそそる。
C2 noun /ˌiː.mɛnˈdeɪ.ʃən/

emendation

訂正
Meaning
a correction or improvement made to a text
Example
The article required several emendations before it was ready for print.
記事は印刷の準備ができる前にいくつかの訂正が必要でした。
C2 adverb /əˈbɛd/

abed

ベッドで
Meaning
in bed
Example
She stayed abed all day due to illness.
病気のため、彼女は一日中ベッドで寝ていました。
C2 adjective /ˈmjuːtɪnəs/

mutinous

反乱者
Meaning
refusing to obey authority; rebellious
Example
The soldiers grew mutinous after months without pay.
兵士たちは数ヶ月間給料がなくて反乱者になった。
C2 noun ˈnjʊə.rəʊ ˌfiːd.bæk

neurofeedback

脳の活動をリアルタイムで表示し、脳機能の自己調整を教える技術
Meaning
A technique that uses real-time displays of brain activity to teach self-regulation of brain function.
Example
Neurofeedback enhances cognitive performance and relaxation.
ニューロフィードバックは認知機能とリラクゼーションを高めます。
C2 noun /djuːˈɛnə/

duenna

ガバーナント
Meaning
an older woman acting as a governess or chaperone, especially in Spanish families
Example
The young lady was accompanied by a duenna during the festival.
若い女性は祭りの間、デュエナに付き添われていました。
C2 noun /laʊt/

lout

粗野な人
Meaning
An uncouth or aggressive man or boy.
Example
The drunken lout caused a scene at the party.
酔っ払った粗野な人がパーティーで騒ぎを起こした。
C2 verb /ˈtʃɔːrtl/

chortle

喜んで笑う
Meaning
to laugh in a breathy, gleeful way
Example
The audience chortled at the comedian's witty remarks.
観客はコメディアンのウィットに富んだコメントにクスクスと笑った。
C2 noun /ˈpær.əkˌsɪz.əm/

paroxysm

突然の爆発的な感情
Meaning
A sudden, violent outburst of emotion or activity.
Example
She was seized by a paroxysm of laughter.
彼女は突然の笑いの爆発に襲われた。
C2 verb /ɪnˈɡreɪʃiˌeɪt/

ingratiate

Meaning
To gain favor or approval by deliberate effort, often in a flattering way.
Example
She tried to ingratiate herself with her boss by complimenting him often.
C2 noun /ˈbriːzˌweɪ/

breezeway

屋根付き通路
Meaning
A roofed outdoor passage, often connecting two buildings.
Example
The breezeway connected the house to the garage.
その通路は家とガレージを繋げていた。
C2 adjective /ˈʌŋk.tʃu.əs/

unctuous

お世辞
Meaning
Excessively flattering or ingratiating; oily in texture.
Example
His unctuous tone made everyone uncomfortable.
彼のお世辞な口調は皆を不快にさせた。
C2 verb (past tense, past participle), adjective /ˈhæmstrʌŋ/

hamstrung

無力または制限された
Meaning
crippled or severely restricted in movement or progress.
Example
The team was hamstrung by lack of resources.
チームはリソース不足で制約を受けていた。
C2 verb /ɪˈniː.bri.eɪt/

inebriate

Meaning
to intoxicate; to make someone drunk
Example
The strong wine was enough to inebriate even the most experienced drinker.
C2 noun /ˈvɪtəlz/

victuals

食料
Meaning
Food or provisions, especially for human consumption.
Example
The travelers packed enough victuals for their long journey.
旅行者たちは長い旅のために十分な食料を詰め込みました。
C2 noun /ˌpɒl.iˈsɪl.ə.bəl/

polysyllable

多音節語
Meaning
a word with more than one syllable
Example
The word 'elephant' is a polysyllable because it has three syllables.
‘象’という言葉は、3つの音節があるので多音節語です。
C2 verb /ˈbɒtənaɪz/

botanize

植物を研究する
Meaning
to study plants in their natural environment
Example
They went to the forest to botanize during their vacation.
彼らは休暇中に森で植物を研究しました。
C2 noun /mɔːrˈtɪʃən/

mortician

葬儀屋
Meaning
a person whose job is to prepare dead bodies for burial or cremation and to arrange funerals
Example
The mortician prepared the body for the funeral service.
葬儀屋は葬儀サービスのために遺体を準備しました。
C2 adjective /ˈkrɒtʃ.ə.ti/

crotchety

不機嫌
Meaning
bad-tempered, easily annoyed, and often complaining
Example
The crotchety old man yelled at the children for playing near his house.
不機嫌な老人は、自分の家の近くで遊んでいる子供たちに叫んだ。
C2 noun /ˌɛpɪˈsaɪklɔɪd/

epicycloid

エピサイクロイド
Meaning
a curve traced by a point on the circumference of a circle that rolls around the outside of another circle
Example
The mathematician demonstrated how to draw an epicycloid.
数学者はエピサイクロイドの描き方を示しました。
C2 noun /ˈproʊtoʊˌplæzəm/

protoplasm

プロトプラズム
Meaning
The living substance inside a cell, including the cytoplasm and nucleus.
Example
Scientists observed the movement of protoplasm under the microscope.
科学者たちは顕微鏡でプロトプラズムの動きを観察しました。
C2 noun /ˈhen.ə/

Henna

ヘンナ
Meaning
a reddish-brown dye made from the powdered leaves of a tropical shrub, used to color hair and decorate skin
Example
The bride's hands were beautifully decorated with intricate henna patterns for her wedding ceremony.
花嫁の手は、彼女の結婚式のために精巧なヘンナの模様で美しく飾られていました。
C2 noun /ˌlɪt.əˈrɑː.ti/

literati

文学者
Meaning
well-educated, literary, or scholarly people
Example
The event was attended by poets, critics, and other members of the literati.
そのイベントには詩人、批評家、その他の文学者が出席しました。
C2 verb /skwɛltʃ/

squelch

Meaning
to make a soft sucking sound, such as when walking on mud; to suppress or silence
Example
His boots squelched in the wet ground.
C2 verb /læmˈbeɪst/

lambaste

厳しく非難する
Meaning
to criticize someone or something harshly; to reprimand severely
Example
The teacher lambasted the students for not completing their homework.
教師は宿題をやらなかった学生を厳しく叱責しました。
C2 noun /ˈdiːɪst/

deist

デイスト
Meaning
a person who believes in the existence of a supreme being but rejects organized religion
Example
The philosopher identified himself as a deist.
その哲学者は自分をデイストとして認識した。
C2 adjective /tʃeɪst/

Chaste

清純; 徳
Meaning
pure and morally good; abstaining from sexual activity
Example
She lived a chaste and virtuous life.
彼女は清純で徳のある生活をしました。
C2 verb /koʊˈæɡjəˌleɪt/

coagulate

凝固
Meaning
to cause a liquid, especially blood, to change into a solid or semi-solid state
Example
The blood quickly coagulated after the cut.
切り傷の後、血液はすぐに凝固しました。
C2 noun /ˈdɒldrəmz/

doldrums

Meaning
A state of inactivity, stagnation, or low spirits; also a region near the equator with calm winds.
Example
After the project failed, the team was stuck in the doldrums for months.
C2 noun /ˌɛpɪˈdɜːrmɪs/

epidermis

皮膚の外層
Meaning
the outer layer of cells covering the body of an organism, especially the skin
Example
The epidermis protects the body from harmful bacteria.
エピデルミスは有害な細菌から体を守ります。
C2 verb /ˈɑːblɪˌɡeɪt/

obligate

強制する
Meaning
to bind legally or morally; to compel someone to do something
Example
The contract obligates the company to provide timely service.
契約は会社にタイムリーなサービスを提供することを義務付けます。
C2 verb /dɪsˈmɛmbər/

dismember

切断する
Meaning
to cut or tear the limbs from a body; to divide into separate parts
Example
The king ordered his enemies to be dismembered.
王は敵を切り刻むよう命じました。
C2 noun /ˌpɜːrspɪˈkjuːəti/

perspicuity

明瞭さ
Meaning
Clarity and ease in speech or writing; the quality of being clearly expressed.
Example
The perspicuity of his lecture made it easy for students to understand complex topics.
彼の講義の明瞭さは、学生が複雑なトピックを理解するのを容易にしました。
C2 noun /ˌɑːrtʃˈdiːkən/

archdeacon

大執事
Meaning
A senior clergyman in the Christian Church ranking below a bishop.
Example
The archdeacon assisted the bishop in administrative duties.
アーチディーコンは行政業務で主教を支援した。
C2 noun /ɪkˈsɔːr.ə/

Ixora

イクソラ
Meaning
a tropical flowering shrub with clusters of small bright red, orange, or yellow flowers
Example
The bright red ixora bushes lined the pathway to the tropical garden.
明るい赤いイクソラの低木が熱帯庭園への小道を囲んでいました。
C2 noun /ˌkɒnfəˈriː/

conferee

会議参加者
Meaning
a person who takes part in a conference
Example
Each conferee received a badge at the registration desk.
各会議参加者は登録デスクでバッジを受け取りました。
C2 adjective /dɪˈspjuːtəbl/

Disputable

議論の余地がある; 疑わしい
Meaning
open to debate or argument; questionable
Example
The facts in the case are disputable and need further investigation.
その事件の事実は議論の余地があり、さらなる調査が必要です。
C2 noun /məˈnɒkrəsi/

monocracy

独裁政治
Meaning
A system of government by a single person; autocracy.
Example
The nation suffered under decades of monocracy.
国は数十年にわたるモノクラシーの下で苦しんだ。
C2 noun /tɛkˈnɒɡrəfi/

technography

テクノグラフィー
Meaning
the descriptive study or writing about the practical arts, technologies, or technical methods of a society
Example
The anthropologist specialized in technography to understand indigenous tool-making traditions.
人類学者は土着の道具作りの伝統を理解するためにテクノグラフィーを専門としました。
C2 adjective /ʌnˈwəʊntɪd/

unwonted

異常
Meaning
Unusual, uncommon, or out of the ordinary.
Example
She spoke with an unwonted gentleness that surprised everyone.
彼女は予想外の優しさで話し、皆を驚かせました。
C2 verb /ɪˈspaɪ/

espy

見る
Meaning
To catch sight of or notice something, especially from a distance.
Example
From the hilltop, she espied a small village in the valley.
丘の頂上から、彼女は谷間に小さな村を見つけました。
C2 adjective /ʌnəˈpiːzd/

unappeased

満足していない
Meaning
Not satisfied or calmed; still feeling discontent or anger
Example
Despite the apology, she remained unappeased.
謝罪にもかかわらず、彼女は満足していなかった。
C2 adjective /bɪˈsɒtɪd/

besotted

夢中な、恋に狂った
Meaning
strongly infatuated or obsessed with someone or something
Example
He was completely besotted with her charm.
彼は彼女の魅力に完全に夢中だった。
C2 verb /ˈskærɪfaɪ/

scarify

土を耕す
Meaning
to make shallow cuts or scratches; to loosen the surface of soil
Example
The farmer scarified the soil before planting seeds.
農家は種を植える前に土をスカリファイしました。
C2 noun /prɪˈsɛʃən/

precession

歳差
Meaning
The slow movement of the axis of a spinning body around another axis, often referring to Earth's rotation.
Example
Astronomers study the precession of the equinoxes.
天文学者は春分点の歳差を研究しています。
C2 noun /roʊˈtʌn.də.ti/

rotundity

円形
Meaning
the quality of being round or plump
Example
The rotundity of the balloon made it float gracefully.
風船の円形がそれを優雅に浮かせた。
C2 adjective /ˈmʌski/

musky

ムスクのような
Meaning
having a strong, sweet, earthy smell like musk
Example
The perfume had a musky fragrance.
その香水はムスクのような香りがしました。
C2 noun /ˌhoʊ.mi.oʊˈsteɪ.sɪs/

homeostasis

体内の均衡、生理的過程によって維持される生理的安定性
Meaning
The tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Example
The human body maintains homeostasis through temperature regulation.
人間の体は温度調節によってホメオスタシスを維持します。
C2 adjective /ˌɪnɪˈsɛnʃəl/

inessential

本質的でない
Meaning
not necessary or important; not essential
Example
The report removes all inessential details to stay focused.
その報告書は焦点を保つために本質的でない詳細を削除している。
C2 noun /ˈflɛkʃən/

flection

屈曲
Meaning
The act of bending or the state of being bent, especially of a limb or joint.
Example
The doctor tested the patient's knee flection during the examination.
医者は検査中に患者の膝の屈曲をテストしました。
C2 noun /ˈhɛʃ.ən/

Hessian

ジュート布
Meaning
a strong coarse fabric made from jute or hemp, used for sacks and wrapping
Example
The farmer stored grain in hessian sacks.
農家はジュート布袋に穀物を保管していました。
C2 verb /ˈprɒsəˌlaɪtaɪz/

proselytize

改宗させようとする
Meaning
To try to persuade someone to convert to a different belief or religion.
Example
They tried to proselytize the villagers with their new ideas.
彼らは新しいアイデアで村人たちを改宗させようとした。
C2 noun /ˌmɪsæprɪˈhɛnʃən/

misapprehension

誤解
Meaning
a mistaken belief or misunderstanding
Example
There is a common misapprehension about the causes of the disease.
病気の原因についての一般的な誤解がある。
C2 adjective /dʒɪˈdʒuːn/

jejune

未熟 / 表面的 / 退屈
Meaning
Naive, simplistic, and superficial; also dull or uninteresting.
Example
The professor dismissed the essay as jejune and lacking depth.
教授はそのエッセイを未熟で深みがないとして却下した。
C2 noun /ˈvɛstmənt/

vestment

宗教的な衣装
Meaning
a garment, especially a ceremonial or official robe worn during religious services
Example
The priest wore a golden vestment during the ceremony.
司祭は儀式中に金色の聖衣を着ていた。
C2 noun /ˈʌm.brə/

Umbra

完全な影、太陽黒点の暗い中心
Meaning
the fully shaded inner region of a shadow cast by an opaque object; the dark center of a sunspot
Example
During the eclipse, we stood in the moon's umbra.
日食の際、私たちは月のアンブラの中に立っていました。
C2 noun /əbˈstrʌkʃənɪst/

obstructionist

Meaning
a person who deliberately delays or prevents progress by being uncooperative or oppositional
Example
The obstructionist in the committee kept delaying the decision-making process.
C2 adjective /ˈkæloʊ/

callow

未熟
Meaning
Inexperienced and immature.
Example
The callow intern made several mistakes on his first day.
未熟なインターンは最初の日にいくつかの間違いをしました。
C2 noun /ˈiːdʒɪs/

aegis

保護
Meaning
The protection, backing, or support of a particular person or organization.
Example
The project was carried out under the aegis of the United Nations.
このプロジェクトは国連の庇護の下で実施されました。
C2 noun /spjuːm/

spume

泡
Meaning
Froth or foam, especially found on waves or liquids.
Example
The waves crashed against the rocks, leaving spume in the air.
波が岩にぶつかり、空気中に泡を残した。
C2 adjective /ˈlɛtʃ.ər.əs/

lecherous

好色
Meaning
having or showing excessive or offensive sexual desire
Example
The character was portrayed as a lecherous old man.
そのキャラクターは好色な老人として描かれました。
C2 verb /priːˈdɛstɪn/

predestine

運命づける
Meaning
to determine or decide something in advance, often regarded as being fixed by fate or divine will
Example
They believed their paths were predestined by fate.
彼らは自分たちの道が運命によって前もって定められていると信じていました。
C2 noun /əˈkʌmpənɪst/

accompanist

伴奏者
Meaning
A person who plays a musical instrument to support a singer or another musician.
Example
The pianist served as the accompanist for the singer during the concert.
コンサート中にピアニストは歌手の伴奏者として活躍しました。
C2 adjective /ˌoʊpəˈlɛsənt/

opalescent

オパール色の
Meaning
showing or reflecting a milky, iridescent light like an opal
Example
The opalescent sky glowed with shades of pink and blue.
オパレッセントな空はピンクと青の色合いで輝いていた。
C2 verb /dɒf/

doff

帽子を脱ぐ（敬意の印として）
Meaning
to take off an item of clothing, especially a hat, as a sign of respect
Example
He doffed his hat as the procession passed.
彼は行列が通り過ぎるときに帽子を脱いだ。
C2 noun /ɪˈfrʌntəri/

effrontery

厚顔無恥または大胆な態度
Meaning
shameless or rude boldness
Example
He had the effrontery to lie even when caught red-handed.
彼は赤手で捕まった後でも嘘をつく厚顔無恥さを持っていた。
C2 noun ˌæb.əˈreɪ.ʃən

aberration

逸脱, 異常, 偏差
Meaning
A departure from what is normal, usual, or expected, typically one that is unwelcome.
Example
The scientist dismissed the data as an aberration.
科学者はデータを逸脱と見なした。
C2 verb /ˈwaŋɡl/

wangle

巧妙に何かを達成する
Meaning
To achieve something by clever or sometimes dishonest persuasion or trickery.
Example
He wangled a free ticket to the concert.
彼はコンサートの無料チケットを巧妙に手に入れた。
C2 adjective /ˈfɛstəl/

festal

祭りの、祝祭的な
Meaning
relating to a festival or celebration
Example
The hall was decorated in a festal manner for the wedding.
結婚式のためにホールは祭りのように飾られていました。
C2 adjective /ˌfærɪˈseɪɪkəl/

pharisaical

偽善的な
Meaning
Excessively concerned with formal rules or outward show of morality, often in a hypocritical way.
Example
His pharisaical behavior made people doubt his sincerity.
彼の偽善的な行動は、彼の誠実さに疑問を投げかけた。
C2 adjective /ˈruːnɪk/

runic

ルーンに関連する
Meaning
relating to or consisting of runes; mysterious or magical
Example
The old stone had strange runic carvings on it.
古い石には奇妙なルーンの刻印がありました。
C2 adjective /bɪˈfɒɡd/

befogged

混乱した, ぼんやりした
Meaning
Confused or clouded in mind; made unclear like being surrounded by fog.
Example
His mind felt befogged after the long and exhausting meeting.
長く疲れる会議の後、彼の心は混乱しているように感じた。
C2 noun /ˌfjuːzɪˈleɪd/

fusillade

集中射撃
Meaning
A series of shots fired or missiles thrown all at the same time or in quick succession.
Example
The soldiers advanced under a fusillade of bullets.
兵士たちは集中射撃の中で前進した。
C2 noun /ˈkætəˌklɪzəm/

cataclysm

大災害
Meaning
A sudden and violent event that causes great destruction or upheaval.
Example
The earthquake was a cataclysm that reshaped the city.
地震は都市を再構築したカタクリズムでした。
C2 noun səˈtaɪ.ə.ti

satiety

満腹感
Meaning
The feeling of being satisfied or full, especially with regard to food.
Example
High-fiber foods provide longer satiety.
高繊維食品はより長い満腹感を提供します。
C2 adjective /ˈmeɪndʒi/

mangy

汚くて使い古された
Meaning
in poor condition, shabby, dirty, or affected by mange
Example
The stray dog looked mangy and weak.
迷子の犬は汚れて弱々しく見えた。
C2 noun /ˈɛpɪɡræm/

epigram

エピグラム
Meaning
A short, witty saying or poem that expresses an idea in a clever way.
Example
Oscar Wilde was famous for his sharp epigrams.
オスカー・ワイルドは鋭いエピグラムで有名でした。
C2 adjective /əˈsɜːrbɪk/

acerbic

辛辣
Meaning
sharp, harsh, or bitter in tone or taste
Example
His acerbic comments offended many people in the meeting.
彼の辛辣なコメントは会議で多くの人々を侮辱しました。
C2 adjective /ˌɪnɪkˈstrɪkəbl/

inextricable

分けられない
Meaning
Impossible to separate or escape from.
Example
The two friends shared an inextricable bond.
二人の友達は分けられない絆を共有していた。
C2 adjective /ˈlæm.ən.tə.bəl/

lamentable

嘆かわしい
Meaning
deserving to be criticized or regretted; unfortunate
Example
The team’s lamentable performance disappointed their fans.
チームの嘆かわしいパフォーマンスは、ファンを失望させました。
C2 noun /eɪˈklɑː/

eclat

大成功
Meaning
Brilliant success, acclaim, or great public approval.
Example
The artist's debut performance was met with great éclat.
アーティストの初めてのパフォーマンスは大成功を収めました。
C2 noun /ˈlɒdʒ.mənt/

lodgment

仮宿
Meaning
The act of lodging or a place of temporary stay; also a deposit of something.
Example
The soldiers found lodgment in the abandoned house.
兵士たちは廃屋で仮宿を見つけました。
C2 noun /ˈnaɪɪˌlɪzəm/

nihilism

虚無主義
Meaning
The rejection of all religious and moral principles, often in the belief that life is meaningless.
Example
The philosopher was criticized for promoting nihilism.
哲学者はニヒリズムを推進したとして批判されました。
C2 noun /ˈdɪti/

ditty

短い歌
Meaning
a short, simple song or poem
Example
She sang a cheerful little ditty while cooking.
彼女は料理をしながら陽気な小さな歌を歌っていた。
C2 noun /ˈkæt.aɪ.ɒn ɪksˌtʃeɪndʒ/

cation-exchange

陽イオン交換
Meaning
A chemical process in soil that helps retain nutrients.
Example
The cation-exchange capacity of soil affects plant growth.
土壌の陽イオン交換容量は植物の成長に影響を与える。
C2 noun /ˌkɑːrt ˈblɑːnʃ/

carte blanche

Meaning
complete freedom to act as one wishes
Example
The manager gave her team carte blanche to design the project.
C2 noun /ɪnˈtræn.sɪ.dʒəns/

intransigence

不屈
Meaning
Refusal to change one's views or to agree about something.
Example
The negotiations failed due to the intransigence of both parties.
両者の不屈の姿勢のために交渉は失敗した。
C2 verb /ˈʌndjʊleɪt/

undulate

波打つ
Meaning
To move with a smooth, wave-like motion.
Example
The snake undulated across the sand.
ヘビは砂の上をうねうねと進んでいった。
C2 adjective /kənˈfɔːrməbl/

conformable

適合する
Meaning
Capable of being adapted or consistent with something; compliant.
Example
His actions were conformable to the rules of the institution.
彼の行動はその機関の規則に適合していました。
C2 adjective /ˌɪndɪˈsɜːrnəbl/

indiscernible

見分けがつかない
Meaning
Impossible or difficult to see, notice, or distinguish.
Example
The difference between the two shades was almost indiscernible.
二つの色調の違いはほとんど見分けがつかなかった。
C2 verb /ˌʌn.dɪˈsiːv/

undeceive

誤解を解く
Meaning
To free someone from a misconception or false belief.
Example
She tried to undeceive him about the false rumors.
彼女は嘘の噂について彼を誤解を解こうとしました。
C2 noun /oʊliˈændər/

Oleander

オレアンダー
Meaning
a poisonous evergreen shrub with clusters of white, pink, or red flowers
Example
The beautiful oleander flowers bloomed in the garden despite their toxic nature.
美しいオレアンダーの花が庭で咲いていましたが、その毒性に関わらず。
C2 adjective /əˈsɛt.ɪk/

ascetic

禁欲的
Meaning
Practicing strict self-denial and abstaining from worldly pleasures, often for religious reasons.
Example
He lived an ascetic life in the mountains, far from worldly comforts.
彼は山の中で禁欲的な生活を送り、世俗的な快適さから遠ざかっていた。
C2 noun /ɔːl/

awl

錐
Meaning
a small pointed tool used for making holes, especially in leather
Example
The cobbler used an awl to punch holes in the leather.
靴屋は革に穴を開けるために錐を使った。
C2 verb /dɪˈskraɪ/

descry

遠くで見る
Meaning
to catch sight of something, especially something distant or obscure
Example
From the hilltop, they descried a small village in the distance.
丘の頂上から、彼らは遠くの小さな村を見た。
C2 adjective /ˈbreɪsɪŋ/

bracing

爽快な
Meaning
Invigorating, refreshing, or providing strength and energy.
Example
The hikers enjoyed the bracing mountain air.
登山者たちは爽快な山の空気を楽しんだ。
C2 adjective /ˈstɒlɪd/

stolid

冷静な、無表情な
Meaning
Calm, dependable, and showing little emotion or animation.
Example
Despite the chaos around him, he remained stolid and composed.
周りの混乱にもかかわらず、彼は冷静で落ち着いていました。
C2 noun /ˈæn.oʊd/

anode

正極
Meaning
The positive electrode in a device such as a battery, where current flows into a polarized electrical device.
Example
The anode of the battery was corroded after long use.
バッテリーの正極は長期間の使用後に腐食していました。
C2 adjective /əˈkjuː.zəˌtɔːr.i/

accusatory

非難の
Meaning
Suggesting blame or indicating someone has done wrong.
Example
He gave her an accusatory glance.
彼は彼女に非難の目を向けた。
C2 verb /ˈprætəl/

prattle

おしゃべり
Meaning
to talk at length in a foolish or inconsequential way
Example
The children would prattle on about their games.
子供たちは自分たちのゲームについておしゃべりをしていた。
C2 noun /ˌpoʊpʊˈriː/

potpourri

乾燥花の混合物
Meaning
a mixture of dried flowers and spices kept in a bowl to perfume a room; a miscellaneous collection
Example
The living room was filled with the scent of potpourri.
リビングルームはポプリの香りで満たされていました。
C2 adjective /ˈfiːbraɪl/

febrile

発熱の、興奮した
Meaning
having or showing the symptoms of a fever; or highly excitable or agitated
Example
The patient was in a febrile state with high temperature.
患者は高い温度の熱の状態にありました。
C2 adjective /ˌɪnɪkˈsprɛsəbl/

inexpressible

言葉では表現できない
Meaning
Too strong or extreme to be expressed in words.
Example
She felt inexpressible joy at the news of her success.
彼女は成功の知らせを聞いて言葉では表現できない喜びを感じた。
C2 verb (archaic/rare) /rɛk/

reck

気にする
Meaning
To care about or be concerned with (something); to have regard for.
Example
He does not reck the dangers of his actions.
彼は自分の行動の危険を気にしない。
C2 adjective /ˈpjuːɪsənt/

puissant

強力な
Meaning
having great power or influence; mighty
Example
The king was a puissant ruler whose word was law.
その王は強力な支配者で、その言葉は法律だった。
C2 noun /ˈreɪdɪks/

radix

基数
Meaning
the base or root of something; the number on which a system of numeration is built
Example
In mathematics, the decimal system has a radix of ten.
数学では、十進法の基数は十です。
C2 verb /bɪˈtroʊð/

betroth

婚約する
Meaning
To formally promise to marry someone; to engage.
Example
He was betrothed to the princess at a young age.
彼は若い頃、王女と婚約していた。
C2 verb /ˈrɔɪstər/

roister

大声で祝い
Meaning
to revel noisily; to engage in loud, boisterous celebration
Example
The fans roistered in the streets after the victory.
ファンは勝利後に街で騒いでいました。
C2 noun /nɑːrˈsɪsəs/

narcissus

ナルシスの花
Meaning
A type of flowering plant with yellow or white blooms, often associated with self-love from Greek mythology.
Example
A narcissus bloomed in the garden during spring.
春に、庭でナルシスの花が咲きました。
C2 verb əˈmiːljəreɪt

ameliorate

改善する, 向上させる
Meaning
To make better; improve or enhance something.
Example
The new policies are designed to ameliorate living conditions.
新しい政策は生活条件を改善するために設計されています。
C2 noun /lækˈteɪʃən/

lactation

授乳
Meaning
the secretion of milk by the mammary glands of female mammals
Example
The doctor explained that lactation is a natural process after childbirth.
医者は、出産後の授乳が自然なプロセスであると説明しました。
C2 adjective /ˈmɪn.dʒi/

Mingy

ケチ; 吝嗇
Meaning
mean or stingy; unwilling to spend money
Example
He is too mingy to spend money on anything but necessities.
彼は必要なもの以外にお金を使うのがあまりにもケチだ。
C2 noun əˌten.juˈeɪ.ʃən

attenuation

減衰、減少、弱化
Meaning
The reduction of the force, effect, or value of something.
Example
The attenuation of sound waves affects communication.
音波の減衰はコミュニケーションに影響を与えます。
C2 adjective ˈen.də.krɪn

endocrine

内分泌
Meaning
Relating to or denoting glands that secrete hormones directly into the blood.
Example
The endocrine system regulates metabolism and growth.
内分泌系は代謝と成長を調節します。
C2 verb /ɪnˈsnɛər/

ensnare

罠にかける
Meaning
to catch or trap, often by trickery or deceit
Example
The hunter ensnared the rabbit with a net.
ハンターはネットでウサギを捕まえました。
C2 noun /təˈmɛrɪti/

temerity

大胆さ
Meaning
Excessive confidence or boldness; audacity.
Example
He had the temerity to challenge the professor’s argument.
彼は教授の議論に挑戦する大胆さを持っていた。
C2 noun /ˌpæliˈeɪʃən/

palliation

緩和
Meaning
relief of symptoms without curing the underlying disease or problem
Example
Palliation is often the focus of care for terminally ill patients.
緩和ケアは終末期の患者の治療において重要な焦点となります。
C2 verb /ɪnˈveɪ/

inveigh

激しく批判する
Meaning
To speak or write about something with great hostility and criticism.
Example
He inveighed against the corruption in government.
彼は政府の腐敗に対して激しく批判した。
C2 noun /ˈwɒrən/

warren

ウサギの巣穴のネットワーク
Meaning
A network of interconnected rabbit burrows; also used metaphorically for a densely populated building or district.
Example
The old part of the city is a warren of narrow streets.
街の古い部分は、狭い通りが入り組んだ迷路のようです。
C2 noun /ˌθɜː.məʊˈdʒen.ɪ.sɪs/

thermogenesis

熱の生成過程
Meaning
The process of heat production in living organisms, often associated with burning calories and energy expenditure.
Example
Spicy foods can enhance thermogenesis and calorie burning.
スパイシーな食品はサーモジェネシスとカロリー燃焼を促進できます。
C2 adjective /ɪˈrædɪkəbəl/

irradicable

根絶不可能な
Meaning
not able to be eradicated; impossible to destroy or remove completely
Example
The love of a mother for her child is irradicable.
母親の子供への愛は根絶不可能です。