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… … 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 …
