agitator

[ aj-i-tey-ter ]
/ ˈædʒ ɪˌteɪ tər /

noun

a person who stirs up others in order to upset the status quo and further a political, social, or other cause: The boss said he would fire any union agitators.
a machine or device for agitating and mixing.

Origin of agitator

First recorded in 1730–40; agitate + -or2

Related forms

ag·i·ta·to·ri·al [aj-i-tuh-tawr-ee-uh l, -tohr-] /ˌædʒ ɪ təˈtɔr i əl, -ˈtoʊr-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for agitator

British Dictionary definitions for agitator

agitator

/ (ˈædʒɪˌteɪtə) /

noun

a person who agitates for or against a cause, etc
a device, machine, or part used for mixing, shaking, or vibrating a material, usually a fluid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012