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Showing results for critical period. Search instead for Neonatal period.
Synonyms

critical period

British  

noun

  1. psychol a period in a lifetime during which a specific stage of development usually occurs. If it fails to do so, it cannot readily occur afterwards

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“The real critical period is going to be the next 90 days,” he said.

From The Wall Street Journal • May 4, 2026

SEW said new leadership was needed to "oversee a critical period of positive, transformative change for the company".

From BBC • May 1, 2026

The trajectory of the market will depend on where costs are during a critical period beginning in late January.

From Barron's • Jan. 6, 2026

Lingering distortions might make it harder for investors and policymakers to track inflation during a critical period when many are hyperfocused on how big changes to trade, immigration and fiscal policy are affecting the economy.

From The Wall Street Journal • Dec. 18, 2025

In this return to former habits Madame Bastien fancied she could detect the first sign of the end of this critical period in the life of her son.

From The Seven Cardinal Sins: Envy and Indolence by Sue, Eug?ne

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.