[het-er-uh-kar-ee-on, -uh n]

noun, plural het·er·o·kar·y·a [het-er-uh-kar-ee-uh] /ˌhɛt ər əˈkær i ə/. Biology.

a cell containing two or more nuclei of differing genetic constitutions.

Origin of heterokaryon

1940–45; hetero- + Greek káryon “nut, kernel”; cf. karyo-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for heterokaryon



biology a fungal cell or mycelium containing two or more nuclei of different genetic constitution

Word Origin for heterokaryon

from hetero- + karyon, from Greek karuon kernel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for heterokaryon


[hĕt′ər-ə-kărē-ŏn′, -ən]


A cell having two or more genetically different nuclei.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.