subcooled

/ˌsʌbˈkuld/
adjective
  1. Describing a liquid that has been cooled below its freezing point without becoming solid.
    • The subcooled water remained liquid even at -5°C.
    • Engineers use subcooled refrigerant to make air conditioners work better.
    • In the experiment, the subcooled liquid suddenly froze when shaken.
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