n 1  :  the act of saturating  :  the state of being saturated  2  :  conversion of an unsaturated to a saturated chemical compound (as by hydrogenation)  3  :  a state of maximum impregnation : esp  :  the presence in air of the most water possible under existent pressure and temperature  4 a  :  the one of the three psychological dimensions of color perception that is related to the purity of the color and that decreases as the amount of white present in the stimulus increases <the degree of in a red hue is well understood if we remember pink is a fundamental red hue diluted or mixed with considerable white -Practical Color Television>  - called also intensity  - compare BRIGHTNESS HUE   b (1) :  degree of difference from the gray having the same lightness - used of an object color (2) :  degree of difference from the achromatic light-source color of the same brightness - used of a light-source color .
 
 
 
Similar sounding terms:  stri·a·tion 
 
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