allopolyploidy
/ˌalə(ʊ)ˈpɒlɪplɔɪdi/Biology
noun
The state or condition of being allopolyploid; the act or process of a hybrid becoming a new species by polyploidizing.
Origin
1920s; earliest use found in Annals of Botany. From allo- + polyploidy, after German Allopolyploidie.