Webster 1913 Edition



The creation of an artificial flood by the sudden letting in of a body of water; – called also
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.
(Glass Making)
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.
A mode of covering transparent white glass with a film of colored glass.
Flashing point
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° 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. Usually called
flash point

Webster 1828 Edition



Bursting forth as a flood of light, or of flame and light, or as wit, mirth or joy.

Definition 2023





flashing (plural flashings)

  1. (roofing) Components used to weatherproof or seal roof system edges at perimeters, penetrations, walls, expansion joints, valleys, drains and other places where the roof covering is interrupted or terminated.
  2. The process of getting rid of gaps on shelves by bringing products from the back of the shelf to the front to create a 'fuller' shelf.
  3. The blinking of a light source, such as a light bulb or computer's cursor.
    The incessant flashing of the neon sign kept the neighborhood awake.
  4. The exposing of one's naked body, or part of it, in public briefly (the action of the verb to flash).


Derived terms



  1. present participle of flash

See also