Standard Lemma guide

tetrode

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /ˈtɛtɹəʊd/
  • General-American: /ˈtɛˌtɹoʊd/
  • rhymes with -ɛtɹəʊd

1

noun

Meaning 1

A thermionic valve similar to a triode with the addition of a screen grid to improve the thermionic emission.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A dynatron.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A dual-gate MOSFET.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

a thermionic tube having four electrodes

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve

History

Etymology

From tetr- + -ode.

Across languages

Translations

3 source translations are retained for this English entry.

  • Russian: тетрод (tetrod) — a thermionic valve similar to a triode with the addition of a screen grid to protect the control grid
  • Swedish: tetrod — a thermionic valve similar to a triode with the addition of a screen grid to protect the control grid
  • Tagalog: patandas — a thermionic valve similar to a triode with the addition of a screen grid to protect the control grid