# Hallwachs effect

> English word · Noun

## Definitions
1. Synonym of photoelectric effect.

## Etymology
After German physicist Wilhelm Hallwachs.

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