ac·tiv·ist (ăk'tə-vĭst)
n.
A proponent or practitioner of activism: political activists.

adj.

1. Of, relating to, or engaged in activism.
2. Of, relating to, or being an activist.

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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