# photofield

> English word · Noun

## Definitions
1. Used attributively to describe a form of photoemission in which an electron in a metal is excited by a photon and subsequently tunnels out of the surface

## Etymology
From photo- + field.

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