Толковый словарь английского языка Oxford English Reference - dilute

v. & adj. --v.tr. 1 reduce the strength of (a fluid) by adding water or another solvent. 2 weaken or reduce the strength or forcefulness of, esp. by adding something. --adj. also 1 (esp. of a fluid) diluted, weakened. 2 (of a colour) washed out; low in saturation. 3 Chem. a (of a solution) having relatively low concentration of solute. b (of a substance) in solution (dilute sulphuric acid). Derivatives diluter n. dilution n. Etymology: L diluere dilut- (as DI-(2), luere wash)