Defn: A sulphide containing three atoms of sulphur.

TRISYLLABIC; TRISYLLABICAL Tris`yl*lab"ic, Tris`yl*lab"ic*al, a. Etym: [L. trisyllabus, Gr. Tri- ) + trissyllabique.]

Defn: Of or pertaining to a trisyllable; consisting of three syllables; as, "syllable" is a trisyllabic word. — Tris`yllab"ic*al*ly, adv.

TRISYLLABLE
Tri*syl"la*ble, n. Etym: [Pref. tri- + syllable.]

Defn: A word consisting of three syllables only; as, a-ven-ger.

TRITE
Trite, a. Etym: [L. tritus, p. p. of terere to rub, to wear out;
probably akin to E. throw. See Throw, and cf. Contrite, Detriment,
Tribulation, Try.]

Defn: Worn out; common; used until so common as to have lost novelty
and interest; hackneyed; stale; as, a trite remark; a trite subject.
— Trite"ly, adv.
— Trite"ness, n.

TRITERNATE
Tri*ter"nate, a. Etym: [Pref. tri- + ternate.] (Bot.)

Defn: Three times ternate; — applied to a leaf whose petiole separates into three branches, each of which divides into three parts which each bear three leafiets.

TRITHEISM
Tri"the*ism, n. Etym: [Pref. tri- + Gr. trithéisme.]