![undercool undercool](https://www.tekportal.net/wp-content/uploads/2018/11/undercool.jpg)
verb (used with object)
- Chemistry.
- to cool less than necessary for a given process or purpose.
- to supercool.
- Metallurgy. to cool (molten metal) without forming crystals to a temperature below that at which crystallization normally takes place: Metal must be absolutely still to be undercooled.
verb
- a less common word for supercool