Mason jar

noun

1. a glass jar with a wide mouth and an airtight screw top, much used in home canning.

mason jar

noun

1. an airtight glass jar for preserving food

Word History and Origins

Origin of Mason jar¹

1880–85, named after John L. Mason, 19th-century American who patented it in 1858

Word History and Origins

Origin of Mason jar¹

C20: named after its US inventor, John L. Mason (1832–1902)