Supersaturation

n. (Chemistry, Physics) act of supersaturating; state of being supersaturated

The term supersaturation refers to a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances. It can also refer to a vapor of a compound that has a higher (partial) pressure than the vapor pressure of that compound.
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(n.)
The operation of supersaturating, or the state of being supersaturated.