zipper n : a fastener for locking together two toothed edges by means of a sliding tab [syn: slide fastener, zip, zip-fastener] v : close with a zipper; "Zip up your jacket--it's cold" [syn: zip up, zip] [ant: unzip]

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A zipper (British English: zip or (rarely) zip fastener) is a commonly used device for temporarily joining two edges of fabric. It is used in clothing (e.g., jackets and jeans), luggage and other bags, sporting goods, camping gear (e.g., tents and sleeping bags), and other daily use items.

The bulk of a zipper consists of two strips of fabric tape, each affixed to one of the two pieces to be joined, carrying from tens to hundreds of specially shaped metal or plastic teeth. These teeth can be either individual or shaped from a continuous coil, and are also referred to as elements. The slider, operated by hand, moves along the rows of teeth. Inside the slider is a Y-shaped channel that meshes together or separates the opposing rows of teeth, depending on the direction of the slider's movement.

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