Dictionary.com
definitions
  • synonyms

xiphosuran

[zif-uh-soo r-uh n]
See more synonyms on Thesaurus.com
adjective
  1. belonging or pertaining to the order Xiphosura, comprising the horseshoe crabs.
Show More
noun
  1. an arthropod of the order Xiphosura; a horseshoe crab.
Show More

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. 2018

British Dictionary definitions for xiphosuran

xiphosuran

noun
  1. any chelicerate arthropod of the subclass Xiphosura, including the horseshoe crabs and many extinct forms
Show More
adjective
  1. of, relating to, or belonging to the subclass Xiphosura
Show More

Word Origin

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