A Linnaean order of plants having three pistils or styles.
tr[=i]-jin'i-a, n. an order of plants having three pistils or styles.--n. TR[=I]'GYN, a plant with three styles.--adjs. TR[=I]GYN'IAN, TRIG'YNOUS. [Gr. tri, tris, thrice, gyn[=e], a woman.]