ignitron

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ɪɡˈnaɪtrɒn/, /ˈɪɡnɪˌtrɒn/

US:USA pronunciation: respellingUSA pronunciation: respelling(ig nī′tron, ig′ni tron)



WordReference Random House Unabridged Dictionary of American English © 2026
ig•ni•tron  (ig nī′tron, ig′ni tron),USA pronunciation n. [Electronics.]
  1. Electronicsa cathode-arc vacuum tube with an auxiliary electrode projecting into a pool of mercury: it conducts current when the anode is positive.
  • igni(ter) + -tron 1930–35

Collins Concise English Dictionary © HarperCollins Publishers::
ignitron /ɪɡˈnaɪtrɒn; ˈɪɡnɪˌtrɒn/ n
  1. a mercury-arc rectifier controlled by a subsidiary electrode, the igniter, partially immersed in a mercury cathode. A current passed between igniter and cathode forms a hot spot sufficient to strike an arc between cathode and anode
Etymology: 20th Century: from igniter + electron
'ignitron' also found in these entries (note: many are not synonyms or translations):
igniter - -tron

Forum discussions with the word(s) "ignitron" in the title:


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