Mason jar(redirected from Mason jars)
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Mason jaror mason jar
A wide-mouthed glass jar with a screw top, used for canning and preserving food.
[After John L. Mason (1832-1902), American inventor.]
US an airtight glass jar for preserving food
[C20: named after its US inventor, John L. Mason (1832–1902)]
a glass jar with a screw-top used esp. in home canning.
[1880–85, Amer.; after John Latin.Mason, 19th-century American who patented it in 1858]