of or relating to newborn children.

Origin of neonatal

First recorded in 1900–05; neo- + natal
Related formsne·o·na·tal·ly, adverbpost·ne·o·na·tal, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Contemporary Examples of neonatal

British Dictionary definitions for neonatal



of or relating to newborn children, esp in the first week of life and up to four weeks old
Derived Formsneonatally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

neonatal in Medicine




Of or relating to the first 28 days of an infant's life.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.