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Related to Apomorphic: apomorphine, Synapomorphic


n. (used with a sing. verb)
A system of classification based on the presumed phylogenetic relationships and evolutionary history of groups of organisms.

cla·dis′tic, cla·dis′ti·cal adj.
cla·dis′ti·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) (functioning as singular) biology a method of grouping animals that makes use of lines of descent rather than structural similarities
[C20: New Latin, from Greek klādos branch, shoot]
cladism n
cladist n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(kləˈdɪs tɪks)

n. (used with a pl. v.)
1. a system of classification of organisms based on the branchings of clades.
2. the study of such systems.
clad•ist (ˈklæd ɪst) n.
cla•dis′tic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cladistics - a system of biological taxonomy based on the quantitative analysis of comparative data and used to reconstruct cladograms summarizing the (assumed) phylogenetic relations and evolutionary history of groups of organisms
taxonomy - (biology) study of the general principles of scientific classification
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
No alternative concept, however, has displaced the BSC among evolutionists, although systematists seem increasingly to embrace typological views in which species are defined as possessing one or more diagnostic or apomorphic features (so-called "phylogenetic species concept").
The absence of fibers would appear to be apomorphic in the family.
Defining adaptation in cladistic terms as "apomorphic function promoted by natural selection as compared with plesiomorphic function" (p.
Empetreae are easily diagnosed because this dade has numerous distinctive apomorphic characters, most of which relate to a shift from insect to wind pollination.
Many phenotypic states of freshwater populations are absent in marine and anadromous populations, and because of their wide geographical distribution, many of these apomorphic phenotypic states must have evolved repeatedly after colonization of fresh water.
Heterochrony and developmental innovation of female gametophyte ontogeny in Gnetum, a highly apomorphic seed plant.
In addition, critical investigation of the hypothesis that parasites exhibit unusual degrees of secondary simplification requires assessing the proportion of total apomorphic changes that result in character loss, not just an enumeration of lost traits.
The Asclepiadaceae, as traditionally defined, have repeatedly been shown to be an apomorphic derivative of the Apocynaceae.
He further postulated the apomorphic nature of spikelets of the monoecious, herbaceous, early-diverging lineages that have only one floret per spikelet (Buergersiochloeae S.
In addition, embryo types may resemble each other not because taxa are closely related but owing to shared plesiomorphic features or to a mixture of plesiomorphic and apomorphic characters whose evolutionary derivation is poorly understood.
The present female specimen shares some apomorphic character states with some of these genera, but we consider that its formal taxonomic classification should be postponed pending the description of all the appendages from newly collected specimens of both sexes.