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introgression

Pronunciation: /ˌɪntrə(ʊ)ˈgrɛʃ(ə)n/

Definition of introgression

noun

[mass noun] Biology

the transfer of genetic information from one species to another as a result of hybridization between them and repeated backcrossing.

Derivatives

introgressive

Origin:

mid 17th century: from Latin introgredi 'step in', from intro- 'to the inside' + gradi 'proceed, walk', on the pattern of egression, ingression