Definition of Geissler tube in English:

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Geissler tube

Pronunciation: /ˈɡʌɪslə/


A sealed tube of glass or quartz with a central constriction, filled with vapour for the production of a luminous electrical discharge.
Example sentences
  • The other Geissler tubes have lost their vacuum and were filled with colored water for show purposes.
  • The set of Geissler tubes at the left shows some of the fanciful shapes in which Geissler tubes were made.
  • These were the fore-runners of the Geissler tubes used in science demonstrations.


Mid 19th century: named after Heinrich Geissler (1814–79), the German mechanic and glass-blower who invented it.

For editors and proofreaders

Line breaks: Geiss|ler tube

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