C2 noun /ˌɪnkrʌˈsteɪʃən/
incrustation
आवरण
Meaning
a crust or hard coating formed on the surface of something
Example
The old pipes were blocked due to heavy incrustation of minerals.
पुरानी पाइप्स खनिजों की भारी आवरण के कारण अवरुद्ध हो गई थीं।