viviparous

vi·vip·a·rous

adj \vī-ˈvip-(ə-)rəs, və-\

Definition of VIVIPAROUS

: producing living young instead of eggs from within the body in the manner of nearly all mammals, many reptiles, and a few fishes—compare larviparous, oviparous, ovoviviparous

—vi·vip·a·rous·ly adverb