(th ´m n) (KEY) , organic base of the pyrimidine family. Thymine was the first pyrimidine to be purified from a natural source, having been isolated ...
(tyär ´) (KEY) , city (1998 pop. 145,332), NW Algeria, capital of Tiaret prov. Since Roman times it has been the center of a prosperous agricultural...
(t ´b r) (KEY) , Ital. Tevere, Latin Tiberis, river, 251 mi (404 km) long, rising in the Etruscan Apennines, central Italy. It flows generally S acro...