noun band·gap \ˈband-ˌgap\

Definition of bandgap

  1. :  the difference in energy between the valence band and the conduction band of a solid material (such as an insulator or semiconductor) that consists of the range of energy values forbidden to electrons in the material

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Origin and Etymology of bandgap

1band + gap

First Known Use: 1965

Seen and Heard

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a brief usually trivial fact

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