manipulative
[muh-nip-yuh-ley-tiv, -yuh-luh-tiv]
adjective
influencing or attempting to influence the behavior or emotions of others for one’s own purposes: a manipulative boss.
of or relating to manipulation of objects or parts of the body; serving to manipulate: spinal manipulative therapy.
noun
Usually manipulatives. any of various objects or materials that students can touch and move around in order to help them learn mathematical and other concepts: the use of blocks, flashcards, and other manipulatives in the classroom.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
manipulative
Online Etymology Dictionary, © 2010 Douglas Harper