Standard Lemma guide

heptode

noun · 1 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: /ˈhɛp.təʊd/
  • General-American: /ˈhɛpˌtoʊd/
  • rhymes with -ɛptəʊd

1

noun

Meaning 1

A compound thermionic valve containing a triode and tetrode; was used in superheterodyne radio receivers.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From hept- + -ode.

Across languages

Translations

2 source translations are retained for this English entry.

  • Russian: гепто́д (geptód) — Translations
  • Swedish: heptod — Translations