[ het-er-uh-kroh-muh-sohm ]
See synonyms for heterochromosome on Thesaurus.com

Origin of heterochromosome

First recorded in 1900–05; hetero- + chromosome

Words Nearby heterochromosome

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use heterochromosome in a sentence

  • The heterochromosome group is blended into a vacuolated sphere in growth stages (figs. 199, 200).

    Studies in Spermatogenesis | Nettie Maria Stevens
  • Figure 137 is an exceptional anaphase in which the heterochromosome elements are not mingled with the polar masses of chromatin.

    Studies in Spermatogenesis | Nettie Maria Stevens
  • The small heterochromosome divides in the second spindle in advance of the others as seen in figure 150.

    Studies in Spermatogenesis | Nettie Maria Stevens
  • Bouquet stage from iron-hæmatoxylin preparations, showing the heterochromosome bivalent (x).

    Studies in Spermatogenesis | Nettie Maria Stevens
  • Of the insects considered in this paper Aphis and Termopsis have no "accessory chromosome" or "heterochromosome" of any kind.

British Dictionary definitions for heterochromosome


/ (ˌhɛtərəʊˈkrəʊməˌsəʊm) /

  1. an atypical chromosome, esp a sex chromosome

  2. a chromosome composed mainly of heterochromatin

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