oviparous

adj (biology 生) (of fish, birds, reptiles, etc) producing eggs that hatch outside the body （指鱼、 鸟、 爬虫等）卵生的.

overt, overtake, overtax, overthrow, overtime, overtly, overtone, overture, overturn, overview, overweening, overweight, overweighted, overwhelm, overwhelming, overwhelmingly, overwork, overwrought, overzealous, oviduct, ovoid, ovulate, ovulation, ovum, ow, owe, owing, owing to, owl, owlet, owlish, owlishly, own, own brand, own goal, owner, owner-driver, owner-occupied, owner-occupier, ownerless,