Ovoviviparous :: Ovoviviparous (a.) Oviparous, but hatching the egg while it is within the body, as some fishes and reptiles..
Vivipara :: Vivipara (n. pl.) An artificial division of vertebrates including those that produce their young alive; -- opposed to Ovipara.
Viviparity :: Viviparity (n.) The quality or condition of being viviparous.
Viviparous :: Viviparous (a.) Producing young in a living state, as most mammals, or as those plants the offspring of which are produced alive, either by bulbs instead of seeds, or by the seeds themselves germinating on the plant, instead of falling, as they usually do; -- opposed to oviparous..