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(weatherproofing) From original flashing material of copper or aluminum that reflects flashes of sunlight.


  • IPA(key): /ˈflæʃɪŋ/
  • (file)
  • Rhymes: -æʃɪŋ


flashing (countable and uncountable, plural flashings)

  1. A sudden blazing or bursting, as of fire or water.
  2. (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.
  3. 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.
  4. 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.
  5. The exposing of one's naked body, or part of it, in public briefly (the action of the verb to flash).
  6. (jewelry) The use of rhodium plating to temporarily enhance a ring's durability and shine.

Derived terms[edit]




  1. present participle and gerund of flash

See also[edit]