# Cerenkov effect

> English word · Noun · IPA /tʃɛˈɹɛŋkəf ɛˈfɛkt/

## Definitions
1. The emission of light (Cerenkov radiation) that occurs when a charged particle passes through an insulator at a speed greater than the speed of light in that medium; the characteristic blue glow from a nuclear reactor.

## Etymology
Named after Pavel Alekseyevich Cherenkov.

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