Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A colorless, highly flammable or explosive gas, C2H2, used for metal welding and cutting and as an illuminant.

from The Century Dictionary.

  • noun A colorless gas, C2H2, which has a characteristic and very unpleasant odor, and burns with a luminous smoky flame.
  • noun This gas, C2H2, prepared by the action of water on calcium carbide, is now largely used as an illuminant and to increase the illuminating value of coal-gas and water-gas of poor quality.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) A gaseous compound of carbon and hydrogen, in the proportion of two atoms of the former to two of the latter. It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a number of ways, but chiefly by the action of water on calcium carbide. Its light is very brilliant.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry, countable Any organic compound having one or more carbon–carbon triple bonds; an alkyne.
  • noun organic chemistry, uncountable Ethyne; the simplest alkyne, a hydrocarbon of formula HC≡CH. It is a colourless gas, with a peculiar, unpleasant odour, formerly used as an illuminating gas, but now used in welding or metallurgy.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a colorless flammable gas used chiefly in welding and in organic synthesis

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From French acétylène, coined by French chemist Marcellin Berthelot, from acetyl.

Examples

  • Also, much modern torch use acetylene is still made this way.

    Flammable Ice

  • Also, much modern torch use acetylene is still made this way.

    Flammable Ice » E-Mail

  • The cylinders contained acetylene, which is a highly energetic chemical.

    Unthreaded #16 « Climate Audit

  • The location is what we call a packaged gases or cylinder gases location that puts various types of gases, primarily acetylene, which is used for welding, but other types of gases as well into cylinders for distribution to customers.

    CNN Transcript Jun 24, 2005

  • Another use for acetylene, which is only dependent upon a suitably lowered price for carbide to become of some importance, consists in the preparation of a black pigment to replace ordinary lampblack.

    Acetylene, the Principles of Its Generation and Use

  • When those two substances are mixed together the hydrogen of the water leaves its original partner, oxygen, and the carbon of the calcium carbide leaves the calcium, uniting together to form that particular compound of hydrogen and carbon, or hydrocarbon, which is known as acetylene, whose formula is C_2H_2; while the residual calcium and oxygen join together to produce calcium oxide or lime, CaO.

    Acetylene, the Principles of Its Generation and Use

  • These are known as acetylene dichloride and tetrachloride respectively, or more systematically as dichlorethylene and tetrachlorethane.

    Acetylene, the Principles of Its Generation and Use

  • Fittings are now being specially made for acetylene, which is a step in the right direction, because, in addition to superior taps and joints being essential, smaller bore piping and smaller through-ways to the taps than are required for coal-gas serve for acetylene.

    Acetylene, the Principles of Its Generation and Use

  • The world learned one morning of a new gas called acetylene, clear, brilliant, cheap, and simply made from calcium carbide.

    Frenzied Finance Vol. 1: The Crime of Amalgamated

  • The signature of a baseline molecule, called acetylene (C2H2), was seen for both types of stars, but hydrogen cyanide was seen only around stars like our sun.

    Image Gallery

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • 1906 US Railway Assn. Standard Cipher Code shorthand meaning "Have you begun action?"

    January 19, 2013