Source : Webster's Revised Unabridged Dictionary (1913)

   {Blood plasma} (Physiol.), the colorless fluid of the blood,
      in which the red and white blood corpuscles are suspended.
      

   {Muscle plasma} (Physiol.), the fundamental part of muscle
      fibers, a thick, viscid, albuminous fluid contained within
      the sarcolemma, which on the death of the muscle
      coagulates to a semisolid mass.

Source : WordNet®

blood plasma
     n : plasma that separates from blood in coagulation