# tonoplast

> English word · Noun

## Definitions
1. The cytoplasmic membrane surrounding a vacuole, separating the vacuolar contents from the cell's cytoplasm

## Etymology
From tono- + -plast.

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