| rotator [`rō´tād·ǝr] ANATOMY A muscle that partially rotates a part of the body on the part's axis. ELECTROMAGNETISM A device that rotates the plane of polarization of a plane-polarized electromagnetic wave, such as a twist in a waveguide. MECHANICS A rotating rigid body. QUANTUM MECHANICS A molecule or other quantum-mechanical system which behaves as the quantum-mechanical analog of a rotating rigid body. Also known as top. |