mesostate

from The Collaborative International Dictionary of English v.0.48

Mesostate \Mes"o*state\, n. [Meso- + Gr. ? to make to stand.]
   (Physiol.)
   A product of metabolic action.
   [1913 Webster]

   Note: Every mesostate is either an anastate or katastate,
         according as it is formed by an anabolic or katabolic
         process. See {Metabolism}.
         [1913 Webster]