# polytunnel

> English word · Noun

## Definitions
1. A tunnel made of polyethylene, used to grow plants that require a higher temperature and/or humidity than that which is available in the environment.

## Etymology
Short for polythene tunnel.

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