Myosin

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Myosin \My"o*sin\, n. [Gr. my^s, myo`s a muscle.] (Physiol.
     Chem.)
     A protein present in muscle, serving as the principle
     contractile protein in muscle contraction.
  
     Note: It was earlier considered as being formed in the


           process of coagulation which takes place in {rigor
           mortis}. See {Muscle plasma}, under {Plasma}.
           [1913 Webster +PJC]
  
     Note: Myosin belongs to the group of globulins. It is
           insoluble in water, but soluble in dilute solution of
           salt, and is especially characterized by being
           completely precipitated by saturation of its solutions
           with salt.
           [1913 Webster]

From WordNet (r) 2.0 [wn]:

  myosin
       n : the commonest protein in muscle; a globulin that combines
           with actin to form actomyosin