introgression From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounThe movement of a gene from one species to another. Related wordsSynonymstransgenesistransgenetranslocationretrohomingtransgenosistransposonintrogressantgene flowingressioninsertintronizationintercrossinginsertionmobilizationinsertanttransfer References Wiktionary — introgression Wikipedia — introgression