Meaning of the word crusted in English

What does crusted mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

crusted

US /ˈkrʌs.tɪd/
UK /ˈkrʌs.tɪd/

Adjective

covered with a crust or hard layer

Example:
The old bread was all crusted over.
His eyes were crusted with sleep.