The third bay comes a frost, a killing frost. Shak.

He scattereth the hoarfrost like ashes. Ps. cxlvii. 16.

It was of those moments of intense feeling when the frost of the Scottish people melts like a snow wreath. Sir W. Scott.

Black frost, cold so intense as to freeze vegetation and cause it to turn black, without the formation of hoarfrost. -- Frost bearer (Physics), a philosophical instrument illustrating the freezing of water in a vacuum; a cryophorus. -- Frost grape (Bot.), an American grape, with very small, acid berries. -- Frost lamp, a lamp placed below the oil tube of an Argand lamp to keep the oil limpid on cold nights; -- used especially in lighthouses. Knight. -- Frost nail, a nail with a sharp head driven into a horse's shoe to keep him from slipping. -- Frost smoke, an appearance resembling smoke, caused by congelation of vapor in the atmosphere in time of severe cold.

The brig and the ice round her are covered by a strange black
obscurity: it is the frost smoke of arctic winters. Kane.

-- Frost valve, a valve to drain the portion of a pipe, hydrant, pump, etc., where water would be liable to freeze. -- Jack Frost, a popular personification of frost.

While with a hoary light she frosts the ground. Wordsworth.