bell glass

Century Dictionary and Cyclopedia

1. n. A bell-shaped glass vessel used to cover objects which require protection from variations of the atmosphere, dust, and influences of like character, as delicate plants, bric-à-brac, small works of art, clocks, etc., or to hold gases in chemical operations.

GNU Webster's 1913

1. n. See Bell jar.

WordNet 3.0

1. n. a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases