from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of three isomeric liquids, C5H4N(CH3), derived from coal tar, horse urine, and bone oil and used as an industrial solvent.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of three isomeric methyl derivatives of pyridine, analogous to toluene
from the GNU version of the Collaborative International Dictionary of English
- n. Any one of three isometric bases (C6H7N) related to pyridine, and obtained from bone oil, acrolein ammonia, and coal-tar naphtha, as colorless mobile liquids of strong odor; -- called also methyl pyridine.
from The Century Dictionary and Cyclopedia
- n. Methylpyridine, C5H4-N.CH3, an oily basic liquid formed by the dry distillation of coal, and also made synthetically.
Latin pix, pic-, pitch + -ol1 + -ine2.(American Heritage® Dictionary of the English Language, Fourth Edition)