noun, plural chro·mo·ne·ma·ta [kroh-muh-nee-muh-tuh] /ˌkroʊ məˈni mə tə/. Genetics.

a chromosome thread that is relatively uncoiled at early prophase but assumes a spiral form at metaphase.

Nearby words

  1. chromolithograph,
  2. chromolithography,
  3. chromolysis,
  4. chromomere,
  5. chromomycosis,
  6. chromophil,
  7. chromophil adenoma,
  8. chromophile,
  9. chromophilia,
  10. chromophilous

Origin of chromonema

1920–25; chromo- + Greek nêma thread

Related formschro·mo·ne·mat·ic [kroh-muh-nuh-mat-ik, -nee-] /ˌkroʊ mə nəˈmæt ɪk, -ni-/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for chromonema


noun plural -mata (-mətə) cytology

the coiled mass of threads visible within a nucleus at the start of cell division
a coiled chromatin thread within a single chromosome
Derived Formschromonemal, chromonematic (ˌkrəʊməʊnɪˈmætɪk) or chromonemic, adjective

Word Origin for chromonema

C20: from chromo- + Greek nēma thread, yarn

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 chromonema



n. pl. chro•mo•ne•ma•ta (-mə-tə)

The coiled filament that extends the entire length of a chromosome and on which the genes are located.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.