'Trifolium' definitions:

Definition of 'Trifolium'

From: WordNet
noun
Any leguminous plant having leaves divided into three leaflets [syn: Trifolium, genus Trifolium]

Definition of 'Trifolium'

From: GCIDE
  • Trifolium \Tri*fo"li*um\, n. [L., clover.] (Bot.) A genus of leguminous herbs with densely spiked flowers and usually trifoliate leaves; trefoil. There are many species, all of which are called clover. See Clover. [1913 Webster]