plural amphiploids
: an individual that is a hybrid of two different species and that possesses more than two sets of chromosomes : allopolyploid
[University of Missouri researcher James D.] Wortsell's new wheat strain is an amphiploid, a synthetic grain formed from two wild species. United Press International
compare amphidiploid
amphiploid adjective
an amphiploid species

Word History

Etymology

amphi- + -ploid

First Known Use

1945, in the meaning defined above

Time Traveler
The first known use of amphiploid was in 1945

Browse Nearby Words

Cite this Entry

“Amphiploid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amphiploid. Accessed 29 Mar. 2025.

Medical Definition

amphiploid

noun
: 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
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