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pyridine
(redirected from Ciamician-Dennstedt rearrangement)

    Also found in: Encyclopedia, Wikipedia, Hutchinson 0.28 sec.
pyridine /pyr·i·dine/ (pir´i-din)
1. a coal tar derivative, C5H5N, derived also from tobacco and various organic matter.
2. any of a group of substances homologous with normal pyridine.
pyr·i·dine (pr-dn)
n.
A flammable, colorless or yellowish liquid base that results from the dry distillation of organic matter containing nitrogen, has a penetrating odor, and is used in analytical chemistry and in the manufacture of various drugs and vitamins.
py·ridic (p-rdk) adj.
pyridine
1. a substance derived from coal tar and also from tobacco and various organic materials. Used in industry as a solvent and in the synthesis of organic compounds.
2. any of a group of substances homologous with normal pyridine. The pyridines are serious poisons causing damage to most organs especially nervous and respiratory systems and skin.
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