a prefix meaning “not,” freely used as an English formative, usually with a simple negative force as implying mere negation or absence of something (rather than the opposite or reverse of it, as often expressed by un-1): nonadherence; noninterference; nonpayment; nonprofessional.
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Origin of non-
prefix representing L adv. nōn not
Words nearby non-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for non-
indicating refusal or failurenoncooperation
indicating exclusion from a specified class of persons or thingsnonfiction
indicating lack or absence, esp of a quality associated with what is specifiednonobjective; nonevent
Word Origin for non-
from Latin nōn not
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 non-
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.