19th century: from German Chromosom, ultimately from Old Greek χρῶμα + σῶμα ("body") (because they are stained under the microscope). Pronunciation
  • (British) IPA: /ˈkɹəʊ.məˌsəʊm/
  • (America) IPA: /ˈkɹoʊməˌsoʊm/, /ˈkɹoʊməˌzoʊm/

chromosome (plural chromosomes)

  1. (cytology, genetics) A linear arrangement of condensed DNA and associated proteins (such as chaperone proteins) which contains the genetic material (genome) of an organism.
    Chromosomes store genetic information.
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