1. That which gives a circular motion; a muscle which does so.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• rotater,
• rotifur,
• rottor,
• ronador,
• rotativ,
• eotator,
• totator,
• rotaror,
• rotatore,
• rottator,
• rotatorr,
• rotatora,
• Rotatorie,
• rotifom,
• -robator,
• crotalon,
• rotatorc,
• osteitoc,
• rotatoriez,
• toleretor

The adjective form of the word "rotator" is "rotatory".