Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of three isomeric liquids, C6H7N, related to pyridine and derived from coal tar, horse urine, and rendered bones, that are variously used as industrial solvents, waterproofing agents, intermediates in dyes and resins, and in the synthesis of picolinic acid and niacin.
from The Century Dictionary.
- noun Methylpyridine, C5H4-N.CH3, an oily basic liquid formed by the dry distillation of coal, and also made synthetically.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) 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 Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry Any of three
isomeric methyl derivatives ofpyridine , analogous totoluene
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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Besides his doctor's dissertation, about this period he published work on picoline and, in conjunction with Dobbie, on the decomposition products of the quinine alkaloids (1878-1879).
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When nicotine vapor is passed through a red-hot tube, it yields essentially collidine, and, with this, some pyridine, picoline, lutidine, and gases such as hydrogen, marsh-gas, and ethylene.
Scientific American Supplement, No. 415, December 15, 1883 Various
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Pyridine, picoline, lutidine, and collidine, the first four members of the pyridine series, have, moreover, all been formed synthetically, although the processes are not such as would yield the products as cheaply as they can be gotten from
Scientific American Supplement, No. 415, December 15, 1883 Various
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In smoking, some of the nicotine is decomposed, forming pyridine, picoline, and other poisonous alkaloids.
Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics Joel Dorman Steele
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In its synthesis 1,000 grammes of picoline were first converted into alphapicoline, 380 grammes being obtained.
Scientific American Supplement, No. 623, December 10, 1887 Various
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Together, these projects provided a 35\% increase in capacity for beta picoline, a key raw material input used to produce 3-cyanopyridine and vitamin B3.
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