# popcorn lung

> English word · Noun

## Definitions
1. Bronchiolitis obliterans.
2. A lung affected by bronchiolitis obliterans.

## Etymology
From popcorn + lung.
So called because an outbreak at a popcorn factory led to the recommendation of respiratory protection for all workers in microwave popcorn production.

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