Source : Webster's Revised Unabridged Dictionary (1913)

Hypocarp \Hy"po*carp\, Hypocarpium \Hy`po*car"pi*um\, n. [NL.
   hypocarpium, fr. Gr. "ypo` beneath + ? fruit.] (Bot.)
   A fleshy enlargement of the receptacle, or for the stem,
   below the proper fruit, as in the cashew. See Illust. of
   {Cashew}.