tet·​rode ˈte-ˌtrōd How to pronounce tetrode (audio)
: a vacuum tube with a cathode, an anode, a control grid, and an additional grid or other electrode

Word History

First Known Use

1886, in the meaning defined above

Time Traveler
The first known use of tetrode was in 1886

Dictionary Entries Near tetrode

Cite this Entry

“Tetrode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tetrode. Accessed 6 Feb. 2023.

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