Dictionary
in•tro•gres•sion
Pronunciation: (in"tru-gresh'un), [key]—
n. Genetics.
the introduction of genes from one species into the gene pool of another species, occurring when matings between the two produce fertile hybrids. Also called
in•tro•gres'sive hybridiza'tion Pronunciation: (in"tru-gres'iv). [key]Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.