Do you really want to send Webster 1913 a message saying you like their work?
Hy"po*carp (?), Hy`po*car"pi*um (?), n. [NL. hypocarpium, fr. Gr. 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.
© Webster 1913.