viviparous
adj.
1640s, from Late Latin viviparus "bringing forth alive," from Latin vivus "alive, living" (see vivid) + parere "bring forth, bear" (see pare). See viper.
〔李〕[vivi=living活的；par=to produce产生；-ous a.=character-ized by有……特点的→] a. characterized by producing living young (as opposed to laying eggs)产仔的；胎生的