- a membrane separating a vacuole from the surrounding cytoplasm in a plant cell.
Origin of tonoplast
Also called vacuolar membrane.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- botany the membrane enclosing a vacuole in a plant cell
C20: from Greek tonos tone + -plast
- An intracellular structure or vacuole.