from the GNU version of the Collaborative International Dictionary of English
- n. See Bell jar.
from The Century Dictionary and Cyclopedia
- 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases
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