saturation

英[sætʃə'reɪʃ(ə)n] 美['sætʃə'reʃən]

1. the process of totally saturating something with a substance;

"the impregnation of wood with preservative"

"the saturation of cotton with ether"

2. the act of soaking thoroughly with a liquid

3. a condition in which a quantity no longer responds to some external influence

4. chromatic purity: freedom from dilution with white and hence vividness of hue