Simple past tense and past participle of dilute.(verb)
That has had something added in order to dilute it.(adjective)
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Use "diluted" in a sentence
"The same quantity of wine diluted intoxicates sooner than the same quantity drank in the same time _without_ dilution; the wine being applied to a larger surface of the stomach, acts with proportionably greater quickness -- though wine _diluted_ sooner _intoxicates_, its effects are sooner over."
"While operating earnings per share -- operating earnings per share which we define as diluted EPS on a GAAP basis less gains from refranchising, are expected to range from $0.75 to $0.82 per share."
"It also affects the intermediate package which we call the diluted bitumen tank behavior because there is higher water content and because of the clay layer formation in the bank."