<p><strong>Noun</strong></p><ul><li>a person or thing that retracts</li><li>Anatomy: a muscle that retracts an organ or protruded part</li><li>Surgery: an instrument or appliance for drawing back an impeding part, such as the edge of an incision</li><li>a mechanism or device that regulates retraction, such as adjusting a seat belt retractor</li></ul>