introgression noun. [ɪntrǝ'grɛʃ(ǝ)n] M17.
[from Latin introgredi step in, formed as INTRO- + gradi proceed, walk, after egress, egression, ingress, ingression: see -ION.]
1. A going or coming in. M17.

2. Biology. The transfer of genetic information from one (usu. plant) species to another as a result of hybridization between them and repeated back crossing. M20.

■ introgress verb intrans. (Biology) (of a species, or of a gene) undergo introgression M20.

■ introgressed ppl adjective transferred by or resulting from introgression M20.

[TahlilGaran] English Dictionary ▲