卵らん胎たい生せい

noun

ovoviviparity

Biological term for reproduction where eggs hatch inside the parent's body and the young are born live, without placental attachment.

• サメの一いち部ぶは卵らん胎たい生せいで、体たい内ないで卵たまごが孵ふ化かする。

  Some sharks are ovoviviparous, with eggs hatching inside the body.