trisomy

T1R1I1S1O1M3Y4
UK/ˈtɹʌɪ.sə(ʊ)mi/

noun

The presence of three copies, instead of the normal two, of a particular chromosome of an organism.

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Meanings

nountrisomy (countable and uncountable, plural trisomies)

plural trisomies

  1. countableuncountablebiologyThe presence of three copies, instead of the normal two, of a particular chromosome of an organism.

Origin

From trisome + -y.

Full word history & related roots →

Translations

Finnish trisomia
  • trisomiathree copies of a chromosome
French trisomie
  • trisomiethree copies of a chromosome
German Trisomie
  • Trisomiethree copies of a chromosome
Greek τρισωμία
  • τρισωμία (trisomía)three copies of a chromosome
Icelandic þrístæða
  • þrístæðathree copies of a chromosome

Rhymes & wordplay

Anagrams

tyroismToryism
Cite this entry
APA

trisomy. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/trisomy

MLA

“trisomy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trisomy. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “trisomy,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/trisomy.

Source: trisomy on Wiktionary, CC BY-SA 4.0.