# Trombe wall

> English word · Noun

## Definitions
1. A wall built on the winter sun side of a building with a glass external layer and a high mass internal layer separated by a layer of air, so as to absorb heat during sunlit hours of winter and slowly release it overnight.

## Etymology
Named after French engineer Félix Trombe.

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