TAR n.
A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and having a varied composition according to the temperature and material employed in obtaining it. Coal tar. See in the Vocabulary. -- Mineral tar (Min.), a kind of soft native bitumen. -- Tar board, a strong quality of millboard made f…
TILL prep.
til; -- now used only in respect to time, but formerly, also, of place, degree, etc., and still so used in Scotland and in parts of England and Ireland; as, I worked till four o'clock; I will wait till next week. He . . . came till an house. Chaucer. Women, up till this Cramped under worse than South-sea-isle taboo. Te…
TOLUENE n.
ic series, homologous with benzene, and obtained as a light mobile colorless liquid, by distilling tolu balsam, coal tar, etc.; -- called also methyl benzene, phenyl methane, etc.