Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “heterozygous”


adjective     /ˌhet.ər.əʊˈzaɪ.fəs/ US  /ˌhet̬.ə.roʊˈ-/ specialized
having two different forms of a gene (= part of a cell containing DNA information ) that controls a particular characteristic , one inherited from each parent , and therefore able to pass on either form : a heterozygous cell → Compare homozygousGeneticsInnate and congenital heterozygote     /-ɡəʊt/ US  /-ɡoʊt/ noun [C] specialized a heterozygous person , animal , or organism GeneticsInnate and congenital
(Definition of heterozygous adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of heterozygous

Definitions of “heterozygous” in other dictionaries

Translations of “heterozygous”

Word of the Day


a skilled and trained cook who works in a hotel or restaurant, especially the most important cook

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More