thermionics

[ thurm-ahy-on-iks, thur-mee- ]
/ ˌθɜrm aɪˈɒn ɪks, ˌθɜr mi- /

noun (used with a singular verb)

the branch of physics that deals with thermionic phenomena.

Origin of thermionics

First recorded in 1925–30; see origin at thermion, -ics

Words nearby thermionics

thermionic, thermionic current, thermionic emission, thermionic tube, thermionic valve, thermionics, thermistor, thermit, thermite, thermite process, thermo-

British Dictionary definitions for thermionics

thermionics
/ (ˌθɜːmɪˈɒnɪks) /

noun

(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