[ dih-loo-shuh n, dahy- ]
/ dɪˈlu ʃən, daɪ- /


the act of diluting or the state of being diluted.
something diluted.

Nearby words

  1. dillydally,
  2. diltiazem,
  3. diltiazem hydrochloride,
  4. diluent,
  5. dilute,
  6. diluvial,
  7. diluvialism,
  8. diluvium,
  9. dim,
  10. dim bulb

Origin of dilution

First recorded in 1640–50; dilute + -ion

Related formsan·ti·di·lu·tion, adjectivenon·di·lu·tion, nouno·ver·di·lu·tion, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for non-dilution


/ (daɪˈluːʃən) /


the act of diluting or state of being diluted
a diluted solution
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 non-dilution



1640s, noun of action from past participle stem of Latin diluere (see dilute).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for non-dilution


[ dī-lōōshən, dĭ- ]


The act of reducing the concentration of a mixture or solution.
A diluted solution.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for non-dilution


[ dĭ-lōōshən ]

The process of making a substance less concentrated by adding a solvent, such as water.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.