tr.v. ma·nip·u·lat·ed, ma·nip·u·lat·ing, ma·nip·u·lates
1. To move, arrange, operate, or control by the hands or another body part or by mechanical means, especially in a skillful manner: She manipulated the lights to get just the effect she wanted. See Synonyms at handle.
2. To influence or manage shrewdly or deviously: He manipulated public opinion in his favor.
3. To tamper with or falsify for personal gain: tried to manipulate stock prices.
4. Medicine To handle and move in an examination or for therapeutic purposes: manipulate a joint; manipulate the position of a fetus during delivery.
[Back-formation from MANIPULATION.]
ma·nipu·la·to′ry (-lə-tôr′ē) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.