noun
horseshoe crabs and extinct forms
• Syn: ↑order Xiphosura
• Hypernyms: ↑animal order
• Member Holonyms: ↑Merostomata, ↑class Merostomata
• Member Meronyms: ↑Limulidae, ↑family Limulidae
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Xiphosura /-ō-sūˈrə/ noun
(formed irregularly from Gr ourā tail) an order of Arthropoda of which the only survivors are the king crabs
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Main Entry: ↑xiph-
Useful english dictionary. 2012.