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rotator |
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rotator [′rō‚tād·ər] (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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Low Back: The erector spinae group (spinalis, longissimus, and iliocostalis), the transversospinalis group (multifidi, rotatores, and semispinalis), and the quadratus, lumborum, are important muscles in this area. |
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