Biology. having two similar complements of chromosomes.
Biology. an organism or cell having double the basic haploid number of chromosomes.
Crystallography. a solid belonging to the isometric system and having 24 trapezoidal planes.
Related formsdip·loi·dic, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for diploidbinary
Examples from the Web for diploid
Historical Examples of diploid
Diploid (2n) chromosome numbers were determined from cells in late prophase and metaphase of mitosis.
In animals, as in plants, the diploid generation attained the higher development and gradually assumed the dominant position.
The uninitiated sees in the more highly organised plants only a succession of diploid generations.
Similarly all the higher animals appear to us as independent organisms with diploid nuclei only.
They appear with this arrangement in all subsequent nuclear divisions in the diploid generation.
British Dictionary definitions for diploid
biology (of cells or organisms) having pairs of homologous chromosomes so that twice the haploid number is present
double or twofold
Derived Formsdiploidic, adjectivediploidy, noun
biology a diploid cell or organism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for diploid
1908, from Greek diploos "double, twofold," (from di- "two" + root *pel- "to fold;" see ply (v.)) + eidos "form" (see -oid).
Online Etymology Dictionary, © 2010 Douglas Harper
Having two sets of chromosomes or double the haploid number of chromosomes in the germ cell, with one member of each chromosome pair derived from the ovum and one from the spermatazoon. The diploid number, 46 in humans, is the normal chromosome complement of an organism's somatic cells.
A diploid organism or cell.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Having paired sets of chromosomes in a cell or cell nucleus. In diploid organisms that reproduce sexually, one set of chromosomes is inherited from each parent. The somatic cells of most animals are diploid. Compare haploid. See Note at mitosis.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.