Definition of hermit crab noun from the Oxford Advanced Learner's Dictionary


hermit crab

BrE BrE//ˈhɜːmɪt kræb//
; NAmE NAmE//ˈhɜːrmɪt kræb//
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a crab (= a sea creature with eight legs and, usually, a hard shell) that has no shell of its own and has to use the empty shells of other sea creatures See related entries: Invertebrates
See the Oxford Advanced American Dictionary entry: hermit crab