the meaning of the word origin
Medical Definition of ORIGIN. 1. : the point at which something begins or rises or from which it derives. 2. : the more fixed, central, or larger attachment of a muscleâcompare insertion 1.edical Definition of ORIGIN. 1. : the point at which something begins or rises or from which it derives. 2. : the more fixed, central, or larger attachment of a muscleâcompare insertion 1.