English-Thai Dictionary
pyridine
N สาร อนุ พัน ธ์ช นิดหนึ่ง ของ coal tar
Webster's 1913 Dictionary
PYRIDINE
Pyr "i *dine, n. Etym: [From Gr. (Physiol. Chem. )
Defn: A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaïnes, may be mentioned. See Lutidine.
New American Oxford Dictionary
pyridine
pyr i dine |ˈpirəˌdēn ˈpɪrədin | ▶noun Chemistry a colorless volatile liquid with an unpleasant odor, present in coal tar and used chiefly as a solvent. [A heteroaromatic compound; chem. formula: C 5 H 5 N. ] ORIGIN mid 19th cent.: from Greek pur ‘fire ’ + -ide + -ine 4 .
Oxford Dictionary
pyridine
pyridine |ˈpɪrɪdiːn | ▶noun [ mass noun ] Chemistry a colourless volatile liquid with an unpleasant odour, present in coal tar and used chiefly as a solvent. ●A heteroaromatic compound; chem. formula: C 5 H 5 N. ORIGIN mid 19th cent.: from Greek pur ‘fire ’ + -ide + -ine 4 .
The Wordsmith Dictionary