| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Hoar frost | Geography | Thin ice crystals deposited on surface cooled by radiation; often partly composed of drops of dew frozen after deposition and partly formed directly from water vapor at temperature below freezing point; deposit of ice having a crystalline appearance, produced in a manner similar to dew but at a temperature below 0 degree C. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
