English word neonatal comes from English neo-, English natal (Of or relating to the buttocks. Of or relating to birth.)
| Dictionary entry | Language | Definition |
|---|---|---|
| neo- | English (eng) | (organic chemistry) Being a newly-discovered or -synthesized variant of an existing compound. (organic chemistry) Having a structure, similar to that of neopentane, in which each hydrogen atom of a methyl group has been replaced by an alkyl group. Contemporary. New. |
| natal | English (eng) | Of or relating to the buttocks. Of or relating to birth. |
| neonatal | English (eng) | Of or pertaining to the period of time immediately following birth, or to the newborn. |