from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A Mason-brand glass jar with a screw top, often used for preserving food.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a glass jar with an air-tight screw top; used in home canning
After John Landis Mason (1832-1902). (Wiktionary)