from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various marine arthropods of the class Merostomata, especially Limulus polyphemus or Xiphosura polyphemus of eastern North America, having a large rounded body and a stiff pointed tail. Also called king crab, limulus.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A type of chelicerate arthropod, of the genus Limulus, resembling a crab.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 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
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