# pleura

> English word · Noun · IPA /ˈplʊə.ɹə/

## Definitions
1. Each of a pair of smooth serous membranes which line the thorax and envelop the lungs in humans and other mammals.
2. A lateral part in an animal body or structure.

## Etymology
From Middle English, borrowed from Medieval Latin pleura.

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