neonatal

from WordNet (r) 3.0 (2006)

neonatal
    adj 1: relating to or affecting the infant during the first
           month after birth; "neonatal care"; "the neonatal period"

from The Collaborative International Dictionary of English v.0.48

neonatal \neonatal\ adj.
   1. of or pertaining to a neonate; as, neonatal care; a
      neonatal unit at a hospital.
      [WordNet 1.5]

   2. newly born; recently born.

   Syn: newborn.
        [WordNet 1.5]