• (n.) The department of physiology which deals with the principles of muscular contraction; the exercise of muscular force or contraction.
My`o·dy·nam'ics noun [ Myo- + dynamics .] (Physiol.) The department of physiology which deals with the principles of muscular contraction; the exercise of muscular force or contraction. 
Type: Term Pronunciation: mī′ō-dī-nam′iks Definitions: 1. The dynamics of muscular action.