amphidiploid
noun
am·phi·dip·loid ˌam(p)-fi-ˈdi-ˌplȯid 
: an interspecific hybrid having a complete diploid chromosome set from each parent form
called also allotetraploid
amphidiploid adjective
amphidiploidy
ˌam(p)-fi-ˈdi-ˌplȯi-dē
noun 
Word History
Etymology
amphi- + diploid entry 2
First Known Use
1930, in the meaning defined above
Medical Definition
amphidiploid
noun
am·phi·dip·loid ˌam(p)-fi-ˈdip-ˌlȯid
: an interspecific hybrid having a complete diploid chromsome set from each parent form