[ pree-muh-choo r, -too r, -tyoo r, pree-muh-choo r or, esp. British, prem-uh-, prem-uh- ]
/ ˌpri məˈtʃʊər, -ˈtʊər, -ˈtyʊər, ˈpri məˌtʃʊər or, esp. British, ˌprɛm ə-, ˈprɛm ə- /


occurring, coming, or done too soon: a premature announcement.
mature or ripe before the proper time.


a premature infant.

Origin of premature

From the Latin word praemātūrus, dating back to 1520–30. See pre-, mature

OTHER WORDS FROM premature Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for prematurely

British Dictionary definitions for prematurely

/ (ˌprɛməˈtjʊə, ˈprɛməˌtjʊə) /


occurring or existing before the normal or expected time
impulsive or hastya premature judgment
(of an infant) weighing less than 2500 g (5 1/2 lbs) and usually born before the end of the full period of gestation

Derived forms of premature

prematurely, adverbprematureness or prematurity, noun

Word Origin for premature

C16: from Latin praemātūrus, very early, from prae in advance + mātūrus ripe
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

Medical definitions for prematurely

[ prē′mə-chur, -tur ]


Occurring or developing before the usual or expected time.
Born after a gestation period of less than the normal time, especially, in human infants, after a period of less than 37 weeks.

Other words from premature

pre′ma•turi•ty n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.