- a glass jar with a wide mouth and an airtight screw top, much used in home canning.
Origin of Mason jar
1880–85, Americanism; named after John L. Mason, 19th-century American who patented it in 1858
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- US an airtight glass jar for preserving food
C20: named after its US inventor, John L. Mason (1832–1902)
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
Word Origin and History for mason jar
1885, named for John Latin Mason of New York, who patented it in 1858.
Online Etymology Dictionary, © 2010 Douglas Harper