Flashing word meaning and definition

[noun] sheet metal shaped and attached to a roof for strength and weatherproofing
[noun] a short vivid experience; "a flash of emotion swept over him"; "the flashings of pain were a warning"
[adjective] emitting light in sudden short or intermittent bursts; "flashing lightning and roaring thunder"

\Flash"ing\, n. 1. (Engineering) The creation of an artifical flood by the sudden letting in of a body of water; -- called also {flushing}. 2. (Arch.) Pieces of metal, built into the joints of a wall, so as to lap over the edge of the gutters or to cover the edge of the roofing; also, similar pieces used to cover the valleys of roofs of slate, shingles, or the like. By extension, the metal covering of ridges and hips of roofs; also, in the United States, the protecting of angles and breaks in walls of frame houses with waterproof material, tarred paper, or the like. Cf. {Filleting}. 3. (Glass Making)
(a) The reheating of an article at the furnace aperture during manufacture to restore its plastic condition; esp., the reheating of a globe of crown glass to allow it to assume a flat shape as it is rotated.
(b) A mode of covering transparent white glass with a film of colored glass. --Knight. {Flashing point} (Chem.), that degree of temperature at which a volatile oil gives off vapor in sufficient quantity to burn, or flash, on the approach of a flame, used as a test of the comparative safety of oils, esp. kerosene; a flashing point of 100[deg] F. is regarded as a fairly safe standard. The burning point of the oil is usually from ten to thirty degree above the flashing point of its vapor.

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