Medical Dictionary


noun sta·pe·di·us \stə-ˈpē-dē-əs\

Medical Definition of stapedius



  1. :  a small muscle of the middle ear that arises from the wall of the tympanum, is inserted into the neck of the stapes by a tendon that sometimes contains a slender spine of bone, and serves to check and dampen vibration of the stapes—called also stapedius muscle

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