[zif-uh-soo r-uh n]
- belonging or pertaining to the order Xiphosura, comprising the horseshoe crabs.
- an arthropod of the order Xiphosura; a horseshoe crab.
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
- any chelicerate arthropod of the subclass Xiphosura, including the horseshoe crabs and many extinct forms
- 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