fly-in

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English[edit]

Etymology[edit]

Deverbal from fly in.

Noun[edit]

fly-in (plural fly-ins)

  1. (aviation) An informal gathering of private pilots and their aircraft at a prearranged airfield.
  2. (roofing) A method of application for roll materials by which the dry sheet is set into the bitumen or adhesive applied to the roof surface.