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Related to diplontic: haplontic


An organism having somatic cells with the diploid number of chromosomes.

dip·lont′ic (-lŏn′tĭk) adj.
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) an animal or plant that has the diploid number of chromosomes in its somatic cells
[C20: diplo- + Greek ōn being, from einai to be]
dipˈlontic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈdɪp lɒnt)

1. the diploid individual in a life cycle that has a diploid and a haploid phase.
2. an organism having two sets of chromosomes in its somatic cells and a single haploid set of chromosomes in its gametes.
[1920–25; dipl (o)- + -ont < Greek ont-, s. of ṓn being, present participle of eînai to be (compare onto-)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
For example, somatic mutations are known to accumulate in clonal seaweeds and long-lived plants, leading to phenotypic variability within individuals and to intraorganismal selection, which is often referred to as diplontic or somatic selection (Gill, 1986; Santelices et al., 1995).
It is a fact that the cells which have relatively more chromosomal damage at high irradiation exposures are at a disadvantage due to diplontic section, as these cells cannot compete well with the normal cells and are thus prevented from making any further contribution [6].
Other authors have used still different terminology for these three life cycles: "haplontic,'" "diplontic," and "diplohaplontic" (Pritchard & Bradt, 1984).