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Lewis acid
Lew·is ac·id (plural Lew·is ac·ids)


noun 
Definition:
 
substance forming covalent bond: a substance that can accept a pair of electrons from a base to form a covalent bond
[Mid-20th century. After Gilbert Newton Lewis]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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