tetrode

noun
tet·rode | \ˈte-ˌtrōd \

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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Dictionary Entries near tetrode

tetritol

Tetrix

tetrobol

tetrode

Tetrodon

tetrodont

Tetrodontidae

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The first known use of tetrode was in 1886

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