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Denotation vs. Connotation

carbon monoxide

noun
1.
a colorless, odorless, poisonous gas, CO, that burns with a pale-blue flame, produced when carbon burns with insufficient air: used chiefly in organic synthesis, metallurgy, and in the preparation of metal carbonyls, as nickel carbonyl.
Origin of carbon monoxide
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for carbon monoxide
Historical Examples
  • In the case of inhalation of cigarette smoke the danger is from carbon monoxide gas and not from nicotine.

    Tobacco Leaves W. A. Brennan
  • Water gas is essentially a mixture of carbon monoxide and hydrogen.

  • The blood is, however, never saturated with carbon monoxide, for the animal dies long before this takes place.

    Poisons: Their Effects and Detection Alexander Wynter Blyth
  • Where amounts of carbon monoxide in air from half a per cent.

    Poisons: Their Effects and Detection Alexander Wynter Blyth
  • Coma for three, four and five days from carbon monoxide has been frequently observed.

    Poisons: Their Effects and Detection Alexander Wynter Blyth
  • He referred to the carbon monoxide that I knew issued from the top of all blast-furnaces.

    Steel Charles Rumford Walker
  • Then the nitrogen and carbon monoxide are frozen out in an air-liquefying apparatus and the hydrogen escapes to the storage tank.

    Creative Chemistry Edwin E. Slosson
  • Cases of poisoning by carbon monoxide are both frequent and dangerous.

  • carbon monoxide is a light, colorless, almost odorless gas, very difficult to liquefy.

  • The flames are caused by the burning of carbon monoxide from the oxidation of carbon.

    The Iron Puddler James J. Davis
British Dictionary definitions for carbon monoxide

carbon monoxide

noun
1.
a colourless odourless poisonous flammable gas formed when carbon compounds burn in insufficient air and produced by the action of steam on hot carbon: used as a reducing agent in metallurgy and as a fuel. Formula: CO
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for carbon monoxide
n.

1869, so called because it consists of one carbon and one oxygen atom (as opposed to carbon dioxide, which has two of the latter). An older name for it was carbonic oxide gas.

Online Etymology Dictionary, © 2010 Douglas Harper
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carbon monoxide in Medicine

carbon monoxide n.
A colorless, odorless, highly poisonous gas that is formed by the incomplete combustion of carbon or of a carbonaceous material, such as gasoline.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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carbon monoxide in Science
carbon monoxide  
A colorless, odorless gas formed when a compound containing carbon burns incompletely because there is not enough oxygen. It is present in the exhaust gases of automobile engines and is very poisonous. Chemical formula: CO.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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carbon monoxide in Culture
carbon monoxide (CO)

A compound made up of molecules containing one carbon atom and one oxygen atom.

Note: Carbon monoxide is usually formed when materials burn; it is found, for example, in automobile exhaust.
Note: Carbon monoxide is a colorless, odorless gas that can be fatal to human beings if inhaled.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Value for carbon

10
13
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