the temperature of the air at which hoarfrost begins to form.
noun, Meteorology. 1. an ice fog caused by extremely cold air flowing over a body of comparatively warm water, especially in polar regions.
- Frost stud
noun 1. an antislip device fitted to a horse’s shoe Also called frost cog
- Frost suture
Frost suture n. An intermarginal suture between the eyelids to protect the cornea.
[frawst-weed, frost-] /ˈfrɔstˌwid, ˈfrɒst-/ noun 1. a plant, Helianthemum canadense, of the rockrose family, native to eastern North America, having narrow leaves and a solitary yellow flower.