# Kapitza-Dirac effect

> English word · Noun

## Definitions
1. The diffraction of matter by a standing wave of light.

## Etymology
Named after Paul Dirac and Peter Kapitza who predicted the effect in 1933.

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