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Meaning of alkylation

al•kyl•a•tion

Pronunciation: (al"ku-lā'shun), [key]
— n. Chem.
  1. the replacement of a hydrogen atom in an organic compound by an alkyl group.
  2. the addition of a paraffin to an olefin, done in the manufacture of gasoline.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.