tetrode

noun
tet·​rode | \ ˈte-ˌtrōd How to pronounce tetrode (audio) \

Definition of tetrode

: a vacuum tube with a cathode, an anode, a control grid, and an additional grid or other electrode

First Known Use of tetrode

1886, in the meaning defined above

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The first known use of tetrode was in 1886

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Cite this Entry

“Tetrode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tetrode. Accessed 20 Oct. 2020.

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Britannica.com: Encyclopedia article about tetrode

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