'Subgenera' definitions:

Definition of 'Subgenera'

From: GCIDE

Subgenus \Sub*ge"nus\, n.; pl. Subgenera. (Biol.) A subdivision of a genus, comprising one or more species which differ from other species of the genus in some important character or characters; as, the azaleas now constitute a subgenus of Rhododendron. [1913 Webster]