[al-kuh-ley-shuh n]

noun Chemistry.

the replacement of a hydrogen atom in an organic compound by an alkyl group.
the addition of a paraffin to an olefin, done in the manufacture of gasoline.

Nearby words

  1. alkyl group,
  2. alkyl halide,
  3. alkylate,
  4. alkylating agent,
  5. alkylating drug,
  6. alkylic,
  7. alkyne,
  8. alkyne series,
  9. all,
  10. all along

Origin of alkylation

First recorded in 1895–1900; alkyl + -ation Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for alkylation



the attachment of an alkyl group to an organic compound, usually by the addition or substitution of a hydrogen atom or halide group
the addition of an alkane hydrocarbon to an alkene in producing high-octane fuels
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

Medicine definitions for alkylation




A process in which one or more alkyl groups are substituted for hydrogen atoms in an organic compound.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.