rotatory

adjective

ro·​ta·​to·​ry ˈrō-tə-ˌtȯr-ē 

 British  -t(ə-)rē,

also

rō-ˈtā-tə-rē 

1

: of, relating to, or producing rotation

2

: occurring in rotation

Word History

First Known Use

1578, in the meaning defined at sense 1

Medical Definition

rotatory

adjective

ro·​ta·​to·​ry

ˈrōt-ə-ˌtōr-ē, -ˌtȯr-, British -t(ə-)rē also rō-ˈtā-tə-rē

: of, relating to, or producing rotation