1. a muscle that rotates a limb or body part so that the front surface faces downward or backward
Usage: anatomy

Examples

• The pronator teres muscle helps rotate the forearm.
• Damage to the pronator can affect hand positioning.
• Physical therapists often work on strengthening the pronator muscles.
• The pronator quadratus is located in the forearm.
• Tennis players sometimes injure their pronator muscles from repetitive motion.
• The doctor examined the patient’s pronator function during the assessment.