bn:00024149n
Noun Concept
EN
crust  incrustation  encrustation
EN
A hard outer layer that covers something WordNet 3.0
Definitions
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EN
A hard outer layer that covers something WordNet 3.0 & Open English WordNet
A crust or hard coating of anything upon or within a body, as a deposit of lime, sediment, etc., from water on the inner surface of a steam boiler. Wiktionary
WordNet 3.0 & Open English WordNet
Wiktionary