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 (hĕt′ər-ə-kăr′ē-ŏn′, -ən)
A cell having two or more genetically different nuclei.

het′er·o·kar′y·ot′ic (-ŏt′ĭk) 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) biology a fungal cell or mycelium containing two or more nuclei of different genetic constitution
[from hetero- + karyon, from Greek karuon kernel]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌhɛt ər əˈkær iˌɒn, -ən)

n., pl. -kar•y•a (-ˈkær i ə)
a cell containing two or more nuclei of differing genetic constitutions.
[1940–45; hetero- + Greek káryon nut, kernel; compare karyo-]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
According to PONTECORVO (1956) after formation of the heterokaryon from two genetically distinct haploid mycelia recombined via crossovers and haplodization generated genetically variable progeny.
We demonstrated that, after fusion, a cell that contains two different nuclei (heterokaryon) is formed.
Powell's group based on the ability of the hyphae of two fungal isolates to fuse and form a stable heterokaryon (Powell and Vargas, 2001).
It has been constructed by a combination of low-dose UV induction of strain N402 (one induction for each marker) and mitotic recombination by inducing segregation of spontaneously arising diploid conidiospores isolated from a heterokaryon (e.g., Debets et al.
In fungi, somatic incompatibility is also very common, and is most often called vegetative incompatibility, although the terms somatic, protoplasmic, or heterokaryon incompatibility are also used.
The nit mutants from the isolates anastomosed to form stable heterokaryons when paired with VCG 0124 Nit M testers on minimal media, thus confirming their identity as VCG 0124.
Differentiation of homokaryons and heterokaryons of Agaricus bisporus with inter-simple sequence repeat markers.