a light, flaky, rich pastry made by rolling dough with butter and folding it to form layers: used for tarts, napoleons, etc.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for puff pastry
US puff paste
a dough rolled in thin layers incorporating fat to make a rich flaky pastry for pies, rich pastries, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012