DictionarygenusBiological classification
noun

genus

JEE-nuhs/ˈdʒiːnəs/

A biological grouping containing closely related species.

Lions, tigers, and leopards belong to the same genus.

A compact biological classification tree groups three distinct species—lion, tiger and leopard—under one shared parent node.
Etymology

Latin genus could name a stock or family as well as a kind. English first used it for a logical class, then for a biological category grouping closely related species.

In context

Ticket To Know0:03
belong to the Canis genus – the same family that has wolves, foxes, coyotes and dogs.
Origin of the Dingo: Australia's Ancient Canine

More examples

  • A genus ranks above a species and below a family.
  • The first word in a species' scientific name identifies its genus.
  • These plants belong to different genera within the same family.

Forms

genus · genera

Similar words

taxon
A biological classification group at any rank, not just genus.