Source : Webster's Revised Unabridged Dictionary (1913)

Apocarpous \Ap`o*car"pous\, a. [Pref. apo- + Gr. karpo`s fruit.]
   (Bot.)
   Either entirely or partially separate, as the carpels of a
   compound pistil; -- opposed to {syncarpous}. --Lindley.

Source : WordNet®

apocarpous
     adj : (of ovaries of flowering plants) consisting of carpels that
           are free from one another as in buttercups or roses
           [ant: {syncarpous}]