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perinatal

[per-uh-neyt-l]
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adjective
  1. occurring during or pertaining to the phase surrounding the time of birth, from the twentieth week of gestation to the twenty-eighth day of newborn life.

Origin of perinatal

First recorded in 1950–55; peri- + natal
Related formsper·i·na·tal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for perinatal

perinatal

adjective
  1. of, relating to, or occurring in the period from about three months before to one month after birth
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

Word Origin and History for perinatal

adj.

1952, from peri- + natal.

Online Etymology Dictionary, © 2010 Douglas Harper

perinatal in Medicine

perinatal

(pĕr′ə-nātl)
adj.
  1. Of, relating to, or being the period around childbirth, especially the five months before and one month after birth.
Related formsper′i•natal•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.