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thermionics

[ thurm-ahy-on-iks, thur-mee- ]

noun

, (used with a singular verb)
  1. the branch of physics that deals with thermionic phenomena.

thermionics

/ ˌθɜːmɪˈɒnɪks /

noun

  1. functioning as singular the branch of electronics concerned with the emission of electrons by hot bodies and with devices based on this effect, esp the study and design of thermionic valves

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Word History and Origins

Origin of thermionics1

First recorded in 1925–30; thermion, -ics

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thermionic emissionthermionic tube

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