dilution

noun

di·​lu·​tion dī-ˈlü-shən 

də-

1

: the action of diluting : the state of being diluted

2

: something (such as a solution) that is diluted

3

: a lessening of real value (as of equity) by a decrease in relative worth

specifically : a decrease of per share value of common stock by an increase in the total number of shares

Examples of dilution in a Sentence

Recent Examples on the Web

In the case against Allied Van Lines Moving and Storage, the larger Allied Van Lines Inc. accused the defendant of trademark infringement, false descriptions, federal trademark dilution, cybersquatting, injury to its business reputation and dilution, and misappropriation and unfair competition. —Ron Hurtibise, Sun Sentinel, 1 Apr. 2025

These hybrid models provide deeper capital reserves and allow for longer development cycles without excessive dilution. —Pierrick Bouffaron, Forbes, 25 Mar. 2025

Justice Brett Kavanaugh repeatedly probed whether there should be a time limit to the section of the Voting Rights Act of 1965 that’s aimed at preventing the dilution of power of the Black vote. —Maureen Groppe, USA TODAY, 24 Mar. 2025

Expansion fees are shared directly among owners—to offset the dilution of NBA-wide revenue from things like sponsorships and media deals—and in this case could easily be a $150-plus million windfall for the 30 existing teams for each new franchise added. —Eben Novy-Williams, Sportico.com, 20 Mar. 2025

Word History

Etymology

borrowed from Late Latin dīlūtiōn-, dīlūtiō, from Latin dīluere "to wash away, dissolve, make thinner by mixing with water" + -tiōn-, -tiō, suffix of verbal action — more at dilute entry 1

First Known Use

1646, in the meaning defined at sense 1

Rhymes for dilution

• ablution
• aleutian
• confucian
• elution
• locution
• pollution
• solution
• volution
• absolution
• allocution
• attribution
• comminution

Kids Definition

dilution

noun

di·​lu·​tion dī-ˈlü-shən 

də-

1

: the action of diluting : the state of being diluted

2

: something (as a solution) that is diluted

Medical Definition

dilution

noun

di·​lu·​tion dī-ˈlü-shən, də- 

1

: the action of diluting : the state of being diluted

2

: something (as a solution) that is diluted

Legal Definition

dilution

noun

di·​lu·​tion dī-ˈlü-shən, də- 

1

: a lessening of real value (as of equity) by a decrease in relative worth

specifically : a decrease of the value per share of common stock caused by an increase in the total number of shares

2

: a lessening of the value of a trademark that is caused by use of the mark by another and that creates potential confusion on the part of the consumer

3

: a weakening of the voting rights of a group of citizens (as a minority) because the representatives they elect have no greater legislative power than the representatives elected by smaller voting groups