ignitron

From ignite +‎ -tron.

• (Received Pronunciation) IPA^(key): /ɪɡˈnaɪˌtɹɒn/, /ˈɪɡ.nɪˌtɹɒn/
• (General American) IPA^(key): /ɪɡˈnaɪˌtɹɑn/, /ˈɪɡ.nɪˌtɹɑn/

ignitron (plural ignitrons)

1. A form of rectifier having a pool of mercury as cathode.
   • 1960 March, “Silicon Rectifiers for a French dual-frequency Bo-Bo locomotive”, in Trains Illustrated, page 167:

     After the completion of final tests, BB-30003 went into service in September, 1959, hauling heavy express trains in the Eastern Region of the S.N.C.F. on the same schedules as the Class "BB-16000" locomotive fitted with S-W ignitrons.

• introing

From igni- +‎ -tron.

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ignitron m (plural ignitrons)

1. ignitron

• “ignitron”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

Borrowed from English ignitron or French ignitron.

ignitron n (plural ignitroane)

1. ignitron