Defn: 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.

TRIFOLY
Tri"fo*ly, n. Etym: [L. trifolium. See Trifoliate, Trefoil.] (Bot.)

Defn: Sweet trefoil. [Obs.]
She was crowned with a chaplet of trifoly. B. Jonson.

TRIFORIUM Tri*fo"ri*um, n. Etym: [LL., fr. L. tri- (see Tri-) + foris, pl. fores, a door.] (Arch.)

Defn: The gallery or open space between the vaulting and the roof of the aisles of a church, often forming a rich arcade in the interior of the church, above the nave arches and below the clearstory windows.

TRIFORM
Tri"form, a. Etym: [L. triformis; tri- (see Tri-) + forma form.]

Defn: Having a triple form or character. "This triform antagonism."
I. Taylor.
Goddess Triform, I own thy triple spell. Lowell.

TRIFORMITY
Tri*form"i*ty, n. Etym: [L. triformitas.]

Defn: The state of being triform, or of having a threefold shape.

TRIFURCATE; TRIFURCATED Tri*fur"cate, Tri*fur"ca*ted, a. Etym: [L. trifurcus; tri- (see Tri-) + furca fork.]