frazil
/ˈfreɪzɪl/(亦作frazil ice)
noun
mass noun
- N. Amer. soft or amorphous ice formed by the accumulation of ice crystals in water that is too turbulent to freeze solid〈北美〉（流水中的冰晶结成的）屑冰, 水内冰, 片冰。
词源
late 19th cent.: from Canadian French frasil 'snow floating in the water', from French fraisil 'cinders'.