First Known Use: 1938
Dictionary
introgression
noun in·tro·gres·sion \ˌin-trə-ˈgre-shən\
Definition of INTROGRESSION
: the entry or introduction of a gene from one gene complex into another (as by hybridization)
— in·tro·gres·sant \-ˈgre-sənt\ adjective or noun
— in·tro·gres·sive \-ˈgre-siv\ adjective
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Origin of INTROGRESSION
intro- + -gression (as in regression)
Rhymes with INTROGRESSION
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