amphidiploid

American

[am-fi-dip-loid] / ˌæm fɪˈdɪp lɔɪd /

noun

Biology.

a plant having the sum of the chromosome numbers of two parental species, owing to the doubling of the chromosomes in a hybrid of two species.

amphidiploid British

/ ˌæmfɪˈdɪplɔɪd /

noun

a plant originating from hybridization between two species in which the chromosome number is the sum of the chromosome numbers of both parental species. It behaves as an independent species

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of amphidiploid

First recorded in 1925–30; amphi- + diploid

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023