The act of saturating, or the state of being saturated; full impregnation.

浸透；浸润。

The impregnation of one substance with another till no more can be received, as by solution or by chemical combination.

【化】饱和(状态)。

The degree of vividness or purity of a color, as indicated by its freedom from mixture with white.

彩度(色彩的饱和度，各色和白色混合的程度)。