plural noun
Grap·​si·​dae | \ -səˌdē\

Definition of Grapsidae

: a cosmopolitan family of crabs including pelagic and littoral and shore crabs as well as a few that have adapted to a strictly terrestrial or to a freshwater mode of life — see grapsus

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History and Etymology for Grapsidae

New Latin, from Grapsus, type genus + -idae

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