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xiphosuran

[ zif-uh-soor-uhn ]
/ ˌzɪf əˈsʊər ən /
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adjective

belonging or pertaining to the order Xiphosura, comprising the horseshoe crabs.

noun

an arthropod of the order Xiphosura; a horseshoe crab.

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Origin of xiphosuran

1830–40; <New Latin Xiphosur(a) order name (irregular <Greek xíphos sword + -oura, neuter plural of -ouros -tailed, derivative of ourá tail) + -an
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for xiphosuran

xiphosuran
/ (ˌzɪfəˈsjʊərən) /

noun

any chelicerate arthropod of the subclass Xiphosura, including the horseshoe crabs and many extinct forms

adjective

of, relating to, or belonging to the subclass Xiphosura
C19: from New Latin Xiphosura, irregularly from Greek xiphos sword + oura tail
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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