CEFR Level
The metabolic process by which the liver produces ketones from fatty acids, providing an alternative energy source during low carbohydrate availability.
"Ketogenesis occurs during fasting or low-carb diets."
A person with an irresistible urge to steal, typically without need or profit.
"The kleptomaniac was caught shoplifting again."
A small decorative object, especially in a house.
"The shelf was full of little knickknacks collected from their travels."