# mass balance

> English word · Noun

## Definitions
1. An application of conservation of mass to the analysis of physical systems, taking into account the material that enters and leaves a system.
2. A system in which products can be labelled as sustainable or as fair trade when they only partially use sustainable or fair-trade ingredients.

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