# Mason jar

> English word · Noun

## Definitions
1. A glass jar with a screw top, often used for preserving food.

## Etymology
Named after American tinsmith John Landis Mason (1832–1902), who first invented and patented it in 1858.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/mason-jar