Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Latin
Origin: dilutus, past participle of diluere 'to wash away'

dilute

1 verb
     
di‧lute1 [transitive]
1 to make a liquid weaker by adding water or another liquid [↪ water down]:
diluted fruit juice
dilute something with/in something
Dilute the paint with a little oil.
2 to make a quality, belief etc weaker or less effective [↪ water down]:
an attempt to dilute the proposals
dilution noun [uncountable and countable]
Any dilution of standards must be resisted.

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