| / English Dictionary |
PYRIDINE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
Classified under:
Hypernyms ("pyridine" is a kind of...):
alkali; base (any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water)
Hyponyms (each of the following is a kind of "pyridine"):
triphosphopyridine (a pyridine ring with three phosphorus groups)
Context examples:
A synthetic pyridine derivative anesthetic, Phenazopyridine is used as a local anesthetic in urinary tract disorders to relieve pain of lower urinary-tract irritation, as in cystitis, urethritis or prostatitis.
(Phenazopyridine, NCI Thesaurus)
Any of a group of isomeric compounds that are monomethyl derivatives of pyridines derived from coal tar, horse urine, and bone oil.
(Picoline Compound, NCI Thesaurus)
A battery consisting of a lithium anode and a cathode of iodine and poly-2-vinyl pyridine.
(Lithium Iodide Battery Device Component, NCI Thesaurus)
A synthetic derivative of nitrophenyl-pyridine and potent calcium channel blocker, Nicardipine (Nifedipine Family) blocks calcium ions from certain cell walls and inhibits contraction of coronary and peripheral arteries, resulting in lowered oxygen requirements for heart muscle and decreased arterial contraction and spasm.
(Nicardipine, NCI Thesaurus)
The hydrochloride salt form of nicardipine, a synthetic derivative of nitrophenyl-pyridine and potent calcium channel blocker, Nicardipine (Nifedipine Family) blocks calcium ions from certain cell walls and inhibits contraction of coronary and peripheral arteries, resulting in lowered oxygen requirements for heart muscle and decreased arterial contraction and spasm.
(Nicardipine Hydrochloride, NCI Thesaurus)
They also found other pyridine carboxylic acids at similar concentrations and, for the first time, found pyridine dicarboxylic acids.
(Vitamin B3 might have been made in space, delivered to Earth by meteorites, NASA)
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