manipulatory

transitive verb manipulated, manipulating

1. to work, operate, or treat with or as with the hand or hands; handle or use, esp. with skill
2. to manage or control artfully or by shrewd use of influence, often in an unfair or fraudulent way: to manipulate an election by bribing the voters
3. 1. to falsify (figures, accounts, etc.) for one's own purposes or profit; rig
   2. to cause (prices of stock, etc.) to fall or rise by wash sales, matched orders, etc.

Origin: back-form. < manipulation