Horseshoe crab
WordNet

noun


(1)   Large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse
WiktionaryText

Noun



  1. A type of chelicerate arthropod, of the genus Limulus, resembling a crab.
 
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