mason jar

1. 1.

   a glass jar with an air-tight screw top; used in home canning

   Broaderjar

Questions about mason jar

What does mason jar mean?

mason jar means "a glass jar with an air-tight screw top; used in home canning".

Is mason jar a common word?

mason jar is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.