Definition of dilution in English:

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Pronunciation: /dīˈlo͞oSHn/
Pronunciation: /diˈlo͞oSH(ə)n/


1The action of making a liquid more dilute.
Example sentences
  • Strangely, this chimes with homoeopathic beliefs about the way that remedies become more active by increased dilution in polar solvents like water.
  • The isotope dilution or spike approach was a major advance in measuring small amounts of parent and daughter isotope in a sample.
  • In birds, the process of urinary concentration involves dilution of glomerular filtrate by the reabsorption of sodium chloride in the thick ascending limb of looped nephrons.
1.1The action of making something weaker in force, content, or value: he is resisting any dilution of dogma
More example sentences
  • ‘In these circumstances, the nature and structure of public funding will have a pivotal role in underpinning both total content funding and preventing dilution by the commercial networks,’ says the report.
  • Although the band features players from the UK, Cameroon, France, Sierra Leone and Senegal, each member shares their musical foundation: open to influence, but without any dilution of content.
  • It presents law to psychology students in a manner that respects both its complexity and its depth; the use of a range of experts helps to prevent dilution of its content.
1.2A liquid that has been diluted.
Example sentences
  • Use distilled or deionized water for dilutions.
  • Cells from new zygotic colonies were resuspended in 1 ml water and appropriate dilutions were made.
  • It seems like salicylic acid might be a good thing for him to try or maybe a gentle dilution of tea tree oil.
1.3The degree to which a solution has been diluted: the antibody was applied at a dilution of 1:50
More example sentences
  • It consists of isopropyl alcohol in aqueous solution at two different dilutions.
  • The instructions recommend various dilutions of the stock solution for different films, so it will be necessary to do some experimentation to see what works best with the formula below.
  • All 26 dung samples provided correct results (true genotype) before dilution and at a dilution of 1 in 5.
1.4A reduction in the value of a shareholding due to the issue of additional shares in a company without an increase in assets.
Example sentences
  • Be sure to look for a compelling explanation of why the rights issue and share dilution are needed as part of the recovery plan.
  • While stock options offer management an incentive to perform well, overloaded stock-option accounts create the possibility of unwanted share value dilution.
  • This would lead to additional shareholders' dilution.



Pronunciation: /-ˈlo͞otiv/
(chiefly Finance )
Example sentences
  • But if they decide not to do anything and go on with organic growth, it will be dilutive to existing shareholders.
  • But they do have a dilutive effect on a company's stock, and shareholders may be forgiven for asking whether the options' recipients are really earning their sky-high pay - or just enjoying a free ride on the bull.
  • There will be more shares in issue which will be dilutive.

Words that rhyme with dilution

ablution, absolution, allocution, attribution, circumlocution, circumvolution, Confucian, constitution, contribution, convolution, counter-revolution, destitution, diminution, distribution, electrocution, elocution, evolution, execution, institution, interlocution, irresolution, Lilliputian, locution, perlocution, persecution, pollution, prosecution, prostitution, restitution, retribution, Rosicrucian, solution, substitution, volution

For editors and proofreaders

Syllabification: di·lu·tion

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