infancy

[in-fuh n-see]

noun, plural in·fan·cies.

the state or period of being an infant; very early childhood, usually the period before being able to walk; babyhood.
the corresponding period in the existence of anything; very early stage: Space science is in its infancy.
infants collectively.
Law. the period of life to the age of majority, 21 years at common law but now usually 18; minority; nonage.

Origin of infancy

From the Latin word infantia, dating back to 1485–95. See infant, -cy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


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British Dictionary definitions for infancy

infancy

noun plural -cies

the state or period of being an infant; childhood
an early stage of growth or development
infants collectively
the period of life prior to attaining legal majority (reached at 21 under common law, at 18 by statute); minority nonage
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 infancy
n.

late 14c., from Anglo-French enfaunce and directly from Latin infantia "early childhood," literally "inability to speak," from infantem (see infant).

Online Etymology Dictionary, © 2010 Douglas Harper

infancy in Medicine

infancy

[ĭnfən-sē]

n.

The earliest period of childhood, especially before the ability to walk has been acquired.
The state of being an infant.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.