Category:Trigon

Tri"gon, n. Etym: [l. trigonum, gr. Tri-) + trigone.]

1. A figure having three angles; a triangle.

2. (astrol.) (a) a division consisting of three signs. (b) trine, an aspect of two planets distant 120 degrees from each Other. Hutton.

3. (gr. & rom. Antiq.) (a) a kind of triangular lyre or harp. (b) a kind of game at ball played by three persons standing at the Angular points of a triangle.

Trigon; trigonid Tri"gon, n. (zoöl.)

Defn: the cutting region of the crown of an upper molar, usually the Anterior part. That of a lower molar is the tri"go*nid.