D defs.my
Entry 1 sense Webster, 1913

Manipulator

/mən-ĭp'-yəl-ātˌ-ẽr/ · Ma·nip·u·la·tor · IPA /məˈnɪpjʊleɪtə(ɹ)/
01 n. One who manipulates, sometimes in an underhanded or fraudulent manner; as, a stock market manipulator.
  1. 1.
    One who manipulates, sometimes in an underhanded or fraudulent manner; as, a stock market manipulator.