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v. su·per·cooled, su·per·cool·ing, su·per·cools
To cool (a substance) below a phase-transition temperature without the transition occurring; for example, to cool a gas below the boiling point without condensation or to cool a liquid below the freezing point without solidification.
To become supercooled.
(Chemistry) chem to cool or be cooled without freezing or crystallization to a temperature below that at which freezing or crystallization should occur. Supercooled liquids are not in equilibrium
1. to cool (a liquid) below its freezing point without producing solidification or crystallization; undercool.v.i.
2. to become supercooled.
Past participle: supercooled