# EPR

> English word · Noun · frequency rank #51,687

## Definitions
1. Initialism of engine pressure ratio (the ratio of pressure between exhaust and inlet of a jet engine).
2. Initialism of expected profit rate.
3. Initialism of European Pressurised Reactor, a type of nuclear reactor, later also an initialism of Evolutionary Power Reactor.
4. Initialism of electronic patient record.
5. Initialism of extended producer responsibility.

## Etymology
Abbreviation

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