Category:Trefoil

Tre"foil, n. Etym: [l. tres three + e. foil leaf; cf. F. frèfle, it. Trifoglio, l. trifolium. See tri-, foil leaf, and cf. Trifoly.]

1. (bot.)

Defn: any plant of the genus trifolium, which includes the white Clover, red clover, etc.; -- less properly, applied also to the Nonesuch, or black medic. See clover, and medic.

2. (arch.)

Defn: an ornamental foliation consisting of three divisions, or Foils.

3. (her.)

Defn: a charge representing the clover leaf.