Standard Lemma guide

bandgap

noun · 2 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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No pronunciation record was provided for this word.

1

noun

Meaning 1

The energy difference between two allowed ranges of electron energy in a solid; especially the difference between the energies of the valence band and the conduction band.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A gap in a frequency range in which waves cannot propagate.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

Examples

  • The propagation of an acoustic wave inside a phononic crystal is forbidden in the bandgap frequency range due to Bragg scattering.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From band + gap.

Across languages

Translations

18 source translations are retained for this English entry.

  • Bulgarian: забранена зона (zabranena zona) — physics
  • Chinese Mandarin: 帶隙 /带隙 (dàixì) — physics
  • Chinese Mandarin: 能隙 (néngxì) — physics
  • Czech: zakázaný pás — physics
  • Esperanto: benda breĉo — physics
  • Esperanto: bendbreĉo — physics
  • Estonian: keelutsoon — physics
  • Finnish: kielletty vyö — physics
  • Finnish: energiarako — physics
  • French: bande interdite — physics
  • German: Bandlücke — physics
  • Polish: przerwa energetyczna — physics
  • Polish: pasmo wzbronione — physics
  • Polish: pasmo zabronione — physics
  • Polish: przerwa wzbroniona — physics
  • Polish: przerwa zabroniona — physics
  • Romanian: bandă interzisă — physics
  • Russian: запрещённая зона (zapreščónnaja zona) — physics