crustaceous definition

  • adjective:
    • Having, resembling, or constituting a hard crust or layer.
    • Crustacean.
    • Resembling a crustacean.
    • related to, or for the nature of, crust or shell; having a crustlike layer.
    • from the Crustacea; crustacean.
    • being or having or resembling a tough crust or layer
    • of or belonging to the class Crustacea
  • others:
    • Pertaining to crust; like crust; of the nature of a crust or layer.
    • In zoology: Having a crust-like shell; from the Crustacea; crustacean.
    • In entomology, having a somewhat tough and flexible texture, resisting minor stress, although not rigid: said of components of the integument.
    • In botany: rough, thin, and brittle.
    • In lichenology, creating an appartment crust in or upon the substratum, and adhering to it securely because of the whole under-surface, whilst to not be separable without injury: applied to the thallus of lichens.

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