IPA: //poʊstˈneɪtəl//
KK: /ˈpoʊstˌneɪtəl/
Relating to the time after a baby is born, especially in the first few weeks or months.
The postnatal care for mothers and their newborns is very important.
Postnatal → It is formed from "post-" (meaning after) and "natal" (from Latin "natalis", meaning relating to birth). The word "postnatal" refers to the period occurring after birth.
Think of 'post-' meaning 'after' and 'natal' relating to 'birth' — so postnatal refers to the time after a baby is born.