frazil
/ˈfreɪzɪl/
noun
- Small, needle-like ice crystals that form in turbulent, supercooled water, often in rivers or streams.
- Frazil ice formed in the river as the temperature dropped below freezing.
- The bridge's supports were damaged by frazil ice building up during the winter.
- Scientists study frazil to understand how ice forms in fast-moving water.