1946, in the meaning defined above
probably from -zygous
Keep scrolling for more
More Definitions for zygosity
zygosity
More from Merriam-Webster on zygosity
Rhyming Dictionary: Words that rhyme with zygosity
See Definitions and Examples
Get Word of the Day daily email!
You're nevertoo cool to learn something new.
Sign up for our Word of the Daydaily newsletter!