alkyne
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al·kyne
(ăl′kīn′)n.
Any of a series of aliphatic hydrocarbons with a carbon-carbon triple bond and the general formula CnH2n-2.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
alkyne
(ˈælkaɪn) oralkine
n
(Elements & Compounds)
a. any unsaturated aliphatic hydrocarbon that has a formula of the type CnH2n–2
b. (as modifier): alkyne series.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
al•kyne
(ˈæl kaɪn)n.
any member of the homologous series of unsaturated, aliphatic hydrocarbons having at least one triple bond and the general formula CnH2n−2, as acetylene.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
al·kyne
(ăl′kīn′) Any of a group of hydrocarbons whose carbon atoms form chains linked by one or more triple bonds. Alkynes have the general formula CnH2n-2 and include acetylene.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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| Noun | 1. |  alkyne - a colorless flammable gas used chiefly in welding and in organic synthesisaliphatic compound - organic compound that is an alkane or alkene or alkyne or their derivative oxyacetylene - a mixture of oxygen and acetylene; used to create high temperatures for cutting or welding metals |
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