Definition of crustacean in English:

crustacean

noun

Zoology
  • An arthropod of the large, mainly aquatic group Crustacea, such as a crab, lobster, shrimp, or barnacle.

    • ‘Most of the pesticides used to control sea lice are ‘broad-spectrum crustacean toxins’ and may have an effect on species such as lobster.’
    • ‘The soup had a lovely subtle crustacean flavor.’
    • ‘On the coast, the plovers' diet consists of marine worms, crustaceans, and small mollusks.’
    • ‘The significance of this is that other species such as shellfish and crustaceans feeding in plankton could be affected.’
    • ‘Marine scientists have found evidence of similar patterns among shoreline species like crabs, crustaceans and seaweed.’

adjective

Zoology
  • Relating to or denoting crustaceans.

    • ‘Hungry when born, sea horses eat crustacean larvae and other small creatures with their tubular mouths.’
    • ‘If this protein evolved with the faster crustacean rate, the estimated time of divergence is even more recent.’
    • ‘Positive effects of juvenoids on crustacean metamorphosis were also encountered in barnacles early on.’
    • ‘It is a small crustacean related to the woodlice.’
    • ‘An additional treatment without crustacean zooplankton was also established.’

Pronunciation:

crustacean

/krʌˈsteɪʃn/