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: 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
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.
More from Merriam-Webster on tetrode
Britannica.com: Encyclopedia article about tetrode
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