Bell jar
Bell jar Bell" jar` (Phys.) A glass vessel, varying in size, open at the bottom and closed at the top like a bell, and having a knob or handle at the top for lifting it. It is used for a great variety of purposes; as, with the air pump, and for holding gases, also for keeping the dust from articles exposed to view. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Bell jar — Jar Jar (j[aum]r), n. [F. jarre, Sp. jarra, from Ar. jarrah ewer; cf. Pers. jarrah.] 1. A deep, broad mouthed vessel of earthenware or glass, for holding fruit, preserves, etc., or for ornamental purposes; as, a jar of honey; a rose jar. Dryden.… …   The Collaborative International Dictionary of English

  • bell jar — bel .jär n a bell shaped usu. glass vessel designed to cover objects or to contain gases or a vacuum * * * a glass vessel, closed at top, open at bottom, used in laboratory vacuum experiments …   Medical dictionary

  • bell jar — n. a bell shaped container or cover made of glass, used to keep gases, air, moisture, etc. in or out: also bell glass …   English World dictionary

  • bell jar — bell′ jar n. chem. a bell shaped glass cover designed esp. for protecting objects or for containing gases or a vacuum in chemical experiments …   From formal English to slang

  • bell jar — noun a bell shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases • Syn: ↑bell glass • Hypernyms: ↑protective covering, ↑protective cover, ↑protection * * * noun : a bell shaped… …   Useful english dictionary

  • Bell jar — Infobox Laboratory equipment name = Bell Jar |thumb|200px caption = Bell Jar Apparatus during low pressure test uses = Enclosing objects or containing gases or a vacuum A bell jar is a piece of laboratory glassware similar in shape to a bell. A… …   Wikipedia

  • bell jar — UK / US noun [countable] Word forms bell jar : singular bell jar plural bell jars science a piece of equipment that is made of glass and shaped like a bell, used to surround other equipment during scientific experiments …   English dictionary

  • bell jar — a bell shaped glass jar or cover for protecting delicate instruments, bric a brac, or the like, or for containing gases or a vacuum in chemical experiments. Also called bell glass. [1875 80] * * * …   Universalium

  • bell jar — n. bell shaped glass jar or cover for displaying and protecting delicate objects; bell shaped glass container (closed at top and open at bottom) used in laboratories for keeping gases or vacuum under control during vacuum and chemical experiments …   English contemporary dictionary

  • bell jar — /ˈbɛl dʒa / (say bel jah) noun a bell shaped glass vessel or cover, as for protecting delicate instruments, bric a brac, etc., or for holding gases in chemical operations. Also, bell glass …   Australian English dictionary

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