Triode

//ˈtɹaɪ.əʊd// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A thermionic valve containing an anode, a cathode, and a control grid; small changes to the charge on the grid control the flow from cathode to anode, which makes amplification possible.
  2. 2
    a thermionic vacuum tube having three electrodes; fluctuations of the charge on the grid control the flow from cathode to anode which makes amplification possible wordnet

Etymology

From tri- + -ode.

Related phrases

control gridthermionic valve

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.