Defn: Of or pertaining to thirty years; tricennial. [R.]
TRICENNIAL Tri*cen"ni*al, a. Etym: [L. tricennium thirty years; triginta thirty + annus year: cf. L. tricennalis.]
Defn: Of or pertaining to thirty years; consisting of thirty years; occurring once in every thirty years.
TRICENTENARY
Tri*cen"te*na*ry, a. Etym: [Pref. tri- + centenary.]
Defn: Including, or relating to, the interval of three hundred years; tercentenary. — n.
Defn: A period of three centuries, or three hundred years, also, the three-hundredth anniversary of any event; a tercentenary.
TRICEPS
Tri"ceps, n. Etym: [NL., fr. L. triceps, having three beads; tres,
tria, three + caput head: cf. F. triceps. See Three, and Chief.]
(Anat.)
Defn: A muscle having three heads; specif., the great extensor of the forearm, arising by three heads and inserted into the olecranon at the elbow.
TRICHIASIS
Tri*chi"a*sis, n. Etym: [NL., fr. Gr. (Med.)
Defn: A disease of the eye, in which the eyelashes, being turned in upon the eyeball, produce constant irritation by the motion of the lids.