TYROTOXINE
Tyr`o*tox"ine, n.

Defn: Same as Tyrotoxicon.

TYSONITE
Ty"son*ite, n. Etym: [After S. T. Tyson.] (Min.)

Defn: A fluoride of the cerium metals occurring in hexagonal crystals of a pale yellow color. Cf. Fluocerite.

TYSTIE
Ty"stie, n. Etym: [Cf. Icel. þeisti, Norw. teiste.] (Zoöl.)

Defn: The black guillemot. [Prov. Eng.]

TYTHE
Tythe, n.

Defn: See Tithe.

TYTHING
Tyth"ing, n.

Defn: See Tithing.