# bandgap

> English word · Noun · frequency rank #85,017

## Definitions
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.
2. A gap in a frequency range in which waves cannot propagate.

## Etymology
From band + gap.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bandgap