Source : Webster's Revised Unabridged Dictionary (1913)

Dehiscent \De*his"cent\, a. [L. dehiscens, -entis, p. pr. Cf. F.
   d['e]hiscent.]
   Characterized by dehiscence; opening in some definite way, as
   the capsule of a plant.

Source : WordNet®

dehiscent
     adj : (of e.g. fruits and anthers) opening spontaneously at
           maturity to release seeds [ant: {indehiscent}]