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clade

[ kleyd ]
/ kleɪd /
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noun Biology.

a taxonomic group of organisms classified together on the basis of homologous features traced to a common ancestor.

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Origin of clade

First recorded in 1957, clade is from the Greek word kládos branch
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for clade

clade
/ (kleɪd) /

noun

biology a group of organisms considered as having evolved from a common ancestor
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

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.
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