noun.Agent noun of manipulate; one who manipulates.
noun.
A device which can be used to move, arrange or operate something.
noun.
A puppeteer, especially one controlling marionettes.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
an agent that operates some apparatus or machine
noun.
a person who handles things manually
Word Usage
"You are what they call a manipulator of stocks; that means that you're living on the weaknesses of other people, and it almost means that you get your daily bread, yes, and your cake and your wine, too, from the production of others."