Source : Webster's Revised Unabridged Dictionary (1913)

Ovoviviparous \O*vo*vi*vip"a*rous\, a. [Ovum + viviparous: cf.
   F. ovovivipare.] (Biol.)
   Oviparous, but hatching the egg while it is within the body,
   as some fishes and reptiles.

Source : WordNet®

ovoviviparous
     adj : producing living young from eggs that hatch within the body
           [ant: {viviparous}, {oviparous}]