Mason jar Hear it!

Mason jar definition

☆ Mason jar (mā′sen)

a glass jar having a wide mouth and a screw top, used for preserving foods, esp. in home canning

Etymology: patented (1858) by John L. Mason of New York

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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