Source : Webster's Revised Unabridged Dictionary (1913)

Mesostate \Mes"o*state\, n. [Meso- + Gr. ? to make to stand.]
   (Physiol.)
   A product of metabolic action.

   Note: Every mesostate is either an anastate or katastate,
         according as it is formed by an anabolic or katabolic
         process. See {Metabolism}.