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alkine

[al-kahyn]
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noun Chemistry.
  1. alkyne.
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alkyne

or al·kine

[al-kahyn]
noun Chemistry.
  1. any member of the alkyne series.
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Origin of alkyne

1880–85; alk(yl) + -ine2, altered to -yne
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for alkine

alkyne

noun
    1. any unsaturated aliphatic hydrocarbon that has a formula of the type C n H 2 n –2
    2. (as modifier)alkyne series
    Also called: acetylene
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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

alkine in Science

alkyne

[ălkīn′]
  1. Any of a group of unsaturated hydrocarbons that havee carbon atoms in chains linked by one or more triple bonds and that have the general formula CnH2n-2. Alkynes can be solid, liquid, or gaseous and include acetylene.♦ The group of alkynes as a whole is called the alkyne series or the acetylene series. The first five members of the alkyne series are acetylene (or ethyne), propyne, butyne, pentyne, and hexyne.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.