# backlayering

> English word · Noun

## Definitions
1. The movement of smoke or a hot gas against the direction of the ventilation flow.

## Etymology
From back + layering.

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