Tyrian
(Tyr"i*an), n. [L. Tyrius.] A native of Tyre.
Tyro
(Ty"ro) n.; pl. Tyros [L. tiro a newlylevied soldier, a beginner.] A beginner in learning; one who is
in the rudiments of any branch of study; a person imperfectly acquainted with a subject; a novice. [Written
also tiro.]
The management of tyros of eighteen
Is difficult.
Cowper. Tyrociny
(Ty"ro*cin*y) n. [L. tirocinium first service or trial, fr. tiro. See Tyro.] The state of being a
tyro, or beginner; apprenticeship. [Obs.] Blount.
Tyrolite
(Tyr"o*lite) n. [From Tyrol, where it occurs.] (Min.) A translucent mineral of a green color and
pearly or vitreous luster. It is a hydrous arseniate of copper.
Tyronism
(Ty"ro*nism) n. The state of being a tyro, or beginner. [Written also tironism.]
Tyrosin
(Tyr"o*sin) n. (Physiol. Chem.) A white crystalline nitrogenous substance present in small
amount in the pancreas and spleen, and formed in large quantity from the decomposition of proteid
matter by various means, — as by pancreatic digestion, by putrefaction as of cheese, by the action of
boiling acids, etc. Chemically, it consists of oxyphenol and amidopropionic acid, and by decomposition
yields oxybenzoic acid, or some other benzol derivative. [Written also tyrosine.]
Tyrotoxicon
(Tyr`o*tox"i*con) n. [NL., fr. Gr. cheese + . See Toxic.] (Physiol. Chem.) A ptomaine
discovered by Vaughan in putrid cheese and other dairy products, and producing symptoms similar to
cholera infantum. Chemically, it appears to be related to, or identical with, diazobenzol.
Tyrotoxine
(Tyr`o*tox"ine) n. Same as Tyrotoxicon.
Tysonite
(Ty"son*ite) n. [After S. T. Tyson.] (Min.) A fluoride of the cerium metals occurring in hexagonal
crystals of a pale yellow color. Cf. Fluocerite.
Tystie
(Ty"stie) n. [Cf. Icel. þeisti, Norw. teiste.] (Zoöl.) The black guillemot. [Prov. Eng.]
Tythe
(Tythe) n. See Tithe.
Tything
(Tyth"ing) n. See Tithing.
Tzar
(Tzar) n. The emperor of Russia. See Czar.
Tzarina
(Tza*ri"na Tza*rit"za) n. The empress of Russia. See Czarina.
Tzetze
(Tzet"ze) n. (Zoöl.) Same as Tsetse.
