Try Our Apps


Avoid these words. Seriously.


[kleyd] /kleɪd/
noun, Biology.
a taxonomic group of organisms classified together on the basis of homologous features traced to a common ancestor.
Origin of clade
First recorded in 1957, clade is from the Greek word kládos branch Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
British Dictionary definitions for clade


(biology) a group of organisms considered as having evolved from a common ancestor
Word Origin
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
Cite This Source
Word Origin and History for clade

"group of organisms evolved from a common ancestor," 1957, from Greek klados "young branch, offshoot of a plant, shoot broken off," from PIE *kele-, possibly from root *kel- "to strike, cut" (see holt).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
clade in Science
A grouping of organisms made on the basis of phylogenetic relationship, rather than purely on shared features. Clades consist of a common ancestor and all its descendants. The class Aves (birds) is a clade, whereas 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 © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Nearby words for clade

Word Value for clade

Scrabble Words With Friends