a group of people drawn or acting together in support of a common interest or to voice a common concern: Political interest groups seek to influence legislation.
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Origin of interest group
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Culture definitions for interest group
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.