ˈrōd.əˌtōrē, ˈrōtə-, -ˌtȯr-, -ri adjective
Etymology: probably from New Latin rotatorius, from Latin rotatus (past participle of rotare to rotate) + -orius -ory
1.
a. : of or relating to rotation : rotary
rotatory motion
b. : producing rotation
rotatory substances
— compare dextrorotatory , levorotatory
2. : occurring in rotation
become … wearied with the repetition of rotatory acts — William Godwin