#1 saturation n. [impregnation] the process of totally saturating something with a substance; "the impregnation of wood with preservative"; "the saturation of cotton with ether". wn
#2 saturation n. the act of soaking thoroughly with a liquid. wn
#3 saturation n. a condition in which a quantity no longer responds to some external influence. wn
#4 saturation n. [chroma, intensity, vividness] chromatic purity: freedom from dilution with white and hence vivid in hue. wn
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