sarcocarp

from The Collaborative International Dictionary of English v.0.48

Sarcocarp \Sar"co*carp\, n. [Sarco- + Gr. ? fruit: cf. F.
   sarcocarpe.] (Bot.)
   The fleshy part of a stone fruit, situated between the skin,
   or epicarp, and the stone, or endocarp, as in a peach. See
   Illust. of {Endocarp}.
   [1913 Webster]

   Note: The term has also been used to denote any fruit which
         is fleshy throughout. --M. T. Masters.
         [1913 Webster]