acetylenic

acetylene

[uh-set-l-een, -in]
noun Chemistry.
a colorless gas, C 2 H 2 , having an etherlike odor, produced usually by the action of water on calcium carbide or by pyrolysis of natural gas: used especially in metal cutting and welding, as an illuminant, and in organic synthesis.
Also called ethine, ethyne.


Origin:
1860–65; acetyl + -ene

acetylenic [uh-set-l-en-ik] , adjective
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World English Dictionary
acetylene (əˈsɛtɪˌliːn)
 
n
1.  Systematic name: ethyne a colourless flammable gas used in the manufacture of organic chemicals and in cutting and welding metals. Formula: C2H2
2.  a.  another name for alkyne
 b.  (as modifier): acetylene series
 
acetylenic
 
adj

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Etymonline
Word Origin & History

acetylene
1864, coined by Fr. chemist Marcelin-Pierre-Eugène Berthelot (1823-1907) from acetyl (coined from acetic in 1839 by Ger. chemist Justus von Liebig) + chemical ending -ene.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

acetylene a·cet·y·lene (ə-sět'l-ēn', -ən)
n.
A colorless, highly flammable, and explosive gas used for metal welding and cutting and as an illuminant.

The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
acetylene   (ə-sět'l-ēn', -ən)  Pronunciation Key 
A colorless, highly flammable or explosive gas with a characteristic sweet odor. It is used in welding torches and in the manufacture of organic chemicals such as vinyl chloride. Acetylene is the simplest alkyne, consisting of two carbon atoms joined by a triple bond and each attached to a single hydrogen atom. Also called ethyne. Chemical formula: C2H2.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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