ro·ta·tor (r  t  t r)n. A muscle that serves to rotate a part of the body. |
rotator
[rō′tātər]
Etymology: L, rotare, to rotate
a muscle that rotates a structure around its axis, as the cervical, thoracic, and lumbar musculi rotatores, which function to extend and rotate the vertebral column toward the opposite side.
rotator
an obstetrical instrument used in cows and mares. See rotation fork.
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