Found 1 items, similar to Frost valve.
English → English (gcide) Definition: Frost valve Frost \Frost\ (fr[o^]st; 115), n. [OE. frost, forst, AS. forst, frost. fr. fre['o]san to freeze; akin to D. varst, G., OHG., Icel., Dan., & Sw. frost. [root]18. See Freeze, v. i.] 1. The act of freezing; -- applied chiefly to the congelation of water; congelation of fluids. [1913 Webster] 2. The state or temperature of the air which occasions congelation, or the freezing of water; severe cold or freezing weather. [1913 Webster] The third bay comes a frost, a killing frost. --Shak. [1913 Webster] 3. Frozen dew; -- called also hoarfrost or white frost. [1913 Webster] He scattereth the hoarfrost like ashes. --Ps. cxlvii. 16. [1913 Webster] 4. Coldness or insensibility; severity or rigidity of character. [R.] [1913 Webster] It was of those moments of intense feeling when the frost of the Scottish people melts like a snow wreath. --Sir W. Scott. [1913 Webster] 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. [1913 Webster] 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. [1913 Webster]