Also found in: Thesaurus, Medical, Encyclopedia.


Having a chromosome number that is not a multiple of the haploid number for the species.
A cell or an organism characterized by an aneuploid chromosome number.

an′eu·ploi′dy (-ploi′dē) n.
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.


(Genetics) (of polyploid cells or organisms) having a chromosome number that is not an exact multiple of the haploid number, caused by one chromosome set being incomplete
(Genetics) a cell or individual of this type
ˈaneuˌploidy n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.aneuploid - having a chromosome number that is not an exact multiple of the haploid number
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Mentioned in ?
References in periodicals archive ?
CONCLUSIONS: Benzene appeared to increase the frequencies of aneuploid sperm for chromosomes associated with chromosomal abnormality syndromes in human offspring, even in men whose air benzene exposure was at or below the U.S.
exhibits a particularly exceptional aneuploid series, ranging from n=6 to n=66 (Tanaka, 1949), with every number from n=6 to n=47 represented by at least one species (Roalson et al., 2007).
These particulate chromate-induced aneuploid cells were able to survive and form colonies (47,48).
CI might also favor the ability of cancer cells to acquire resistance to chemotherapics, such as the one related to imatinib mesylate, secondary to chromosome amplifications and duplications in cells with CI (Rajagopalan & Lengauer, 2004); and to 5-fluorouracyl, resulting from amplification of the thymidylate synthetase gene in aneuploid cells (Wang et al., 2004).
After discarding the haploid, tetraploid, and a few aneuploid plants, which did not set seeds or exhibited very low spikelet fertility, the 325 normal seed setting plants (DH) were harvested.
These studies demonstrated that AD strains were diploid or aneuploid hybrids derived from a fusion of serotype A and D parents and that several of them were harboring a serotype A MATa locus.
Several mechanisms of aneuploid decrease or increase are well documented in angiosperm evolution, including descending and ascending dysploidy, nullisomy, and tetrasomy (Stebbins 1950; Darlington 1973; White 1978; Stace 1980; Grant 1981).
Over time, the aneuploid peak in TD crosses split into two peaks: one close to 2 n and the other close to 3 n.
Ploidy analysis revealed 12.5% tetraploid, with 0% aneuploid or hyperploid cells; 8.5% of the cells were in S phase and 21% in the proliferative phase.
These techniques have been designed for a variety of purposes, including identification of embryos affected or carriers of monogenic diseases, identification of aneuploid embryos or selection of embryos with specific gender.
In patients with POR, the incidence of aneuploid blastocysts is higher, with 35.1% of all aneuploid blastocyst cycles reported [12].