postneonatal
adjective
post·neo·na·tal
ˌpōst-ˌnē-ō-ˈnā-tᵊl 
medical
: of, relating to, or affecting the human infant during the period between approximately the first month after birth and the end of the first year of life
postneonatal mortality
the postneonatal stage
Examples of postneonatal in a Sentence
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Differences in postneonatal mortality, or from one month to one year, however, were much more stark.
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Aaron E. Carroll, New York Times, 6 June 2016
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Aaron E. Carroll, New York Times, 6 June 2016
Cite this Entry
“Postneonatal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/postneonatal. Accessed 31 Oct. 2025.
Copy CitationMedical Definition
postneonatal
adjective
post·neo·na·tal
-ˌnē-ō-ˈnāt-ᵊl
: of, relating to, or affecting the infant and especially the human infant usually from the end of the first month to a year after birth
postneonatal mortality
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