pyridine
a colorless, flammable, liquid organic base, C5H5N, having a disagreeable odor, usually obtained from coal or synthesized from acetaldehyde and ammonia: used chiefly as a solvent and in organic synthesis.
Origin of pyridine
1Other words from pyridine
- py·rid·ic [pahy-rid-ik], /paɪˈrɪd ɪk/, adjective
Words Nearby pyridine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use pyridine in a sentence
It was filtered off and distilled with caustic soda, but the distillate did not contain pyridine.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron) | William Anderson SymeMost of these are of a basic character, and belong to the pyridine and the quinoline series.
This reagent is added until the acid reaction has just disappeared and a faint smell of pyridine is perceived.
The 1.5 diketones of this type, when heated with aqueous ammonia, form pyridine derivatives.
This is not exactly the case with the higher groups of alkaloids—the derivatives of pyridine and quinoline.
British Dictionary definitions for pyridine
/ (ˈpɪrɪˌdiːn) /
a colourless hygroscopic liquid with a characteristic odour. It is a basic heterocyclic compound containing one nitrogen atom and five carbon atoms in its molecules and is used as a solvent and in preparing other organic chemicals. Formula: C 5 H 5 N
Origin of pyridine
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for pyridine
[ pĭr′ĭ-dēn′ ]
Any of a class of organic compounds containing a six-member ring in which one of the carbon atoms has been replaced by a nitrogen atom. Pyridines include compounds used as water repellents, herbicides, and various drugs. The pyridine ring structure is also part of many larger compounds, including niacin and nicotine.
The simplest of these compounds, a flammable, colorless or yellowish liquid base having a penetrating odor. It is used as a solvent and waterproofing agent and in the manufacture of various drugs and vitamins. Chemical formula: C5H5N.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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