1. the process of cooling a liquid below its normal freezing point without it becoming solid
Usage: technical; physics
2. in refrigeration, the cooling of a liquid refrigerant below its condensing temperature
Usage: engineering; HVAC

Examples

• The subcooling of water allows it to remain liquid even at temperatures below 32°F.
• Scientists demonstrated subcooling by carefully cooling distilled water in a clean container.
• The refrigeration system uses subcooling to improve efficiency.
• Proper subcooling in the condenser ensures better heat transfer.
• The technician measured the subcooling temperature to diagnose the system.
• Subcooling occurs when the liquid is cooled without nucleation sites for crystallization.