am·​phi·​ploid ˈam(p)-fi-ˌplȯid How to pronounce amphiploid (audio)
of an interspecific hybrid
: having at least one complete diploid set of chromosomes derived from each parent species
amphiploid noun
amphiploidy noun

Word History


amphi- + -ploid

First Known Use

1943, in the meaning defined above

Time Traveler
The first known use of amphiploid was in 1943

Dictionary Entries Near amphiploid

Cite this Entry

“Amphiploid.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2024.

Medical Definition


am·​phi·​ploid ˈam(p)-fi-ˌplȯid How to pronounce amphiploid (audio)
: an individual that is a hybrid of two different species and that possesses more than two sets of chromosomes : allopolyploid compare amphidiploid
amphiploid adjective
amphiploidy noun
plural amphiploidies
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!