P0193600 (pĕr′ə-nāt′l)adj. Of, relating to, or being the period around childbirth, especially the five months before and one month after birth: perinatal mortality; perinatal care.per′i·na′tal·ly adv.
perinatally
(ˌpɛrɪˈneɪtəlɪ) adv (Biology) biology during the perinatal period; before birth EncyclopediaSeeperinatal