post·​neo·​na·​tal | \ ˌpōst-ˌnē-ō-ˈnā-tᵊl How to pronounce postneonatal (audio) \

Definition of postneonatal

: 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

Recent Examples on the Web Differences in postneonatal mortality, or from one month to one year, however, were much more stark. Aaron E. Carroll, New York Times, "Differences in postneonatal mortality, or from one month to one year, however, were much more stark. In fact they begin to accelerate at one month of age.," 6 June 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'postneonatal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of postneonatal

1940, in the meaning defined above

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The first known use of postneonatal was in 1940

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Cite this Entry

“Postneonatal.” Dictionary, Merriam-Webster, Accessed 26 Nov. 2020.

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post·​neo·​na·​tal | \ -ˌnē-ō-ˈnāt-ᵊl How to pronounce postneonatal (audio) \

Medical Definition of postneonatal

: 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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