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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. 2022

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

Word Origin for xiphosuran

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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