crustaceous

/krʌˈsteɪʃəs/
adjective
  1. Relating to or having a hard shell or crust, like a crab or lobster.
    • The biologist studied the crustaceous exoskeleton of the hermit crab.
    • Many crustaceous animals, such as shrimp and lobsters, are important seafood.
    • The fossil had a crustaceous texture, indicating it was once a marine creature.
What does "crustaceous" mean? | whatsthatwordmean | whatsthatwordmean