saturation

ot noun

1. The point at which the output of a linear device, such as a linear amplifier, deviates significantly from being a linear function of the input when the input signal is increased. Modulation often requires that amplifiers operate below saturation.
2. The act of saturating or the process of being saturated
3. The condition in which, after a sufficient increase in a causal force, no further increase in the resultant effect is possible; e.g. the state of a ferromagnetic material that cannot be further magnetized
4. The state of a saturated solution