–gen (?). [(1) From Gr. -γεν-, from the same root as γένοσ race, stock (see Genus). (2) From Gr. suffix -γενήσ born. Cf. F. -gène.] 1. A suffix used in scientific words in the sense of producing, generating: as, amphigen, amidogen, halogen.
2. A suffix meaning produced, generated; as, exogen.