Meaning of Grignard reaction

Grignard' reac"tion

Pronunciation: [key]
— Chem. Chem.
  1. the reaction of a Grignard reagent with any of the numerous types of compounds with which it can combine, as alcohols, acids, aldehydes, ketones, or esters: used chiefly in organic synthesis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.