heterozygosis

noun

het·​ero·​zy·​go·​sis ˌhe-tə-rō-(ˌ)zī-ˈgō-səs How to pronounce heterozygosis (audio)
: heterozygosity

Word History

Etymology

New Latin

First Known Use

1902, in the meaning defined above

Time Traveler
The first known use of heterozygosis was in 1902

Rhymes for heterozygosis

See All Rhymes for heterozygosis

Browse Nearby Words

heterozetesis
heterozygosis
heterozygosity
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Cite this Entry

“Heterozygosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heterozygosis. Accessed 7 Jul. 2026.

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Medical Definition

heterozygosis

noun
het·​ero·​zy·​go·​sis ˌhet-ə-rō-(ˌ)zī-ˈgō-səs How to pronounce heterozygosis (audio)
plural heterozygoses -ˌsēz How to pronounce heterozygosis (audio)
1
: a union of genetically dissimilar gametes forming a heterozygote
2
: heterozygosity
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