pentode

P3E1N1T1O1D2E1
UK/ˈpɛn.təʊd/US/ˈpɛnˌtoʊd/

noun

A thermionic valve similar to a tetrode with the addition of a third grid, the suppressor grid to reduce the secondary emission effect; was/is used in high quality audio and radio products.

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Meanings

nounpentode (plural pentodes)

plural pentodes

  1. A thermionic valve similar to a tetrode with the addition of a third grid, the suppressor grid to reduce the secondary emission effect; was/is used in high quality audio and radio products.

Origin

From pent- + -ode.

Full word history & related roots →

Translations

Finnish pentodi
  • pentodithermionic valve
Japanese 五極管
  • 五極管 (gokyokukan)thermionic valve
Swedish pentod
  • pentodthermionic valve
Tagalog limandas
  • limandasthermionic valve

Rhymes & wordplay

Anagrams

Deponte
Cite this entry
APA

pentode. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/pentode

MLA

“pentode.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pentode. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “pentode,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/pentode.

Source: pentode on Wiktionary, CC BY-SA 4.0.