[ kleyd ]
/ kleɪd /
a taxonomic group of organisms classified together on the basis of homologous features traced to a common ancestor.
HEED THE VOX POPULI, AND TAKE THIS WORD OF THE DAY QUIZ!
Test your memory on these verbal firecrackers from the week of June 29 to July 5!
Question 1 of 7
Origin of clade
First recorded in 1957, clade is from the Greek word kládos branch
Words nearby clade
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for clade
/ (kleɪd) /
biology a group of organisms considered as having evolved from a common ancestor
Word Origin for clade
C20: from Greek klados branch, shoot
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
Scientific definitions for clade
[ klād ]
A grouping of organisms made on the basis of their presumed evolutionary history, rather than purely on shared features. Clades consist of a common ancestor and all its descendants. The class Aves (birds) is a clade, but the class Reptilia (reptiles) is not, since it does not include birds, which are descended from the dinosaurs, a kind of reptile. Many modern taxonomists prefer to use clades in classification, and not all clades correspond to traditional groups like classes, orders, and phyla. Compare grade.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.