a device for closing or sealing a bottle, especially a metal cover with a cork gasket fitting tightly over the mouth of a glass or plastic bottle, held in place by crimping the edge of the cap over the lip or flange of the bottle.
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Origin of bottle cap
An Americanism dating back to 1925–30
Words nearby bottle cap
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020