Look up: pyridine

1. 
   pyridine
   [n] - a toxic colorless flammable liquid organic base with a disagreeable odor
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. 
   pyridine
   water-soluble flammable liquid heterocyclic base C5H5N that has a disagreeable odour, that is obtained by distillation of bone oil or now usu. as a by-product of cooking either by distillation of coal tar or by recovery from gas liquor, that is analogous to benzene in structure except that it contains a nitrogen atom and five carbon atoms in the ring, that is the parent of many naturally occurring...
   Found on http://www.mijnwoordenboek.nl/definition
   
   
3. 
   Pyridine
   Pyr'i·dine noun [ From Greek ... fire.] (Physiol. Chem.) A nitrogenous base, C ₅ H ₅ N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptom ...
   Found on http://www.encyclo.co.uk/webster/P/203
   
   
4. 
   pyridine
   <physiology> A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colourless liquid with a peculiar pungent odour. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may b ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
5. 
   pyridine
   noun a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
6. 
   Pyridine
   `Pyridine` is a chemical compound with the formula C5H5N. It is a liquid with a distinctively putrid, fishy odour. Pyridine is a simple and fundamentally important heterocyclic aromatic organic compound that is structurally related to benzene, wherein one CH group in the six-membered ring is replaced by a nitrogen atom. The pyridine ring occurs in many important compounds, including the nicotinamides. Pyridine is sometimes used as a ligand in coo...
   Found on http://en.wikipedia.org/wiki/Pyridine
   
   
7. 
   pyridine
   (pir´ĭ-dēn) 1. a toxic, colorless, liquid hydrocarbon usually derived from coal tar and used as a laboratory and industrial intermediate.
   Found on http://www.mercksource.com/pp/us/cns/cns
   
   
8. 
   Pyridine
   • (n.) A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mention...
   Found on http://thinkexist.com/dictionary/meaning
   
   
9. 
   pyridine
   any of a class of organic compounds of the aromatic heterocyclic series characterized by a six-membered ring structure composed of five carbon atoms ... [1 related articles]
   Found on http://www.britannica.com/eb/a-z/p/137
   
   
10. 
    Pyridine
    C5H5N Molar mass: 79.0999
    Found on http://www.convertunits.com/molarmass/Py
    
    
11. 
    pyridine
    A colorless heterocyclic aromatic base with an unpleasant smell, found in bone oil and coal tar. Pyridine is used as a solvent and to denature grain alcohol (ethanol. Important derivatives are pyridoxine and niacin (see vitamin B complex.
    Found on http://www.daviddarling.info/encyclopedi
    
    
12. 
    pyridine
    pyridine (pir'idēn) or azine (ăz'ēn) , C5H5N, colorless, flammable, toxic liquid with a putrid odor. It melts at -42°C and boils at 115.5°C. Chemically, it is a heterocyclic aromatic tertiary amine (see under amino group). Its molecule resembles that of benzene, one...
    Found on http://www.infoplease.com/ce6/sci/A08406