TYROCINY Ty"ro*cin*y, n. Etym: [L. tirocinium first service or trial, fr. tiro. See Tyro.]
Defn: The state of being a tyro, or beginner; apprenticeship. [Obs.]
Blount.
TYROLITE
Tyr"o*lite, n. Etym: [From Tyrol, where it occurs.] (Min.)
Defn: A translucent mineral of a green color and pearly or vitreous luster. It is a hydrous arseniate of copper.
TYRONISM
Ty"ro*nism, n.
Defn: The state of being a tyro, or beginner. [Written also tironism.]
TYROSIN
Tyr"o*sin, n. Etym: [Gr. (Physiol. Chem.)
Defn: 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. Etym: [NL., fr. Gr. Toxic.] (Physiol. Chem.)
Defn: 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.