# chain reaction

> English word · Noun

## Definitions
1. A chemical reaction where the products of the reaction influence the reactants of a following reaction, leading to positive feedback.
2. A nuclear reaction in which particles produced by the fission of one atom trigger fissions of other atoms.
3. A series of events, each one causing or influencing the next.

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