trigyn (trijin)

[ Trigynia (trī-jin'i-ä), n. pl. [NL.: see trigyn.] An order of plants in the Linnean system, distinguished by the fact that the flowers have three styles or pistils, as in the bladder-nut. trigynian (tri-jin'i-an), a. [ nous. [As trigyn + -ous.] trigynous (trij'i-nus), a. In bot., three-styled; having three styles. trihedral (tri-hedral), a. [Also triedral; The upper face of the trihedral , proximal, and largest joint of the antennule presents an oval space. Huxley , Anat. Invert., p. 287. Trihedral angle, a solid angle formed by the concurrence of three planes.