thyratron

noun
thy·​ra·​tron | \ ˈthī-rə-ˌträn How to pronounce thyratron (audio) \

Definition of thyratron

: a gas-filled hot-cathode electron tube in which the grid controls only the start of a continuous current thus giving the tube a trigger effect

First Known Use of thyratron

1929, in the meaning defined above

History and Etymology for thyratron

from Thyratron, a trademark

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