tonoplast

[ton-uh-plast, toh-nuh-]

noun

Botany.

1. a membrane separating a vacuole from the surrounding cytoplasm in a plant cell.

tonoplast

/ ˈtəʊnəˌplæst /

noun

1. botany the membrane enclosing a vacuole in a plant cell

Word History and Origins

Origin of tonoplast¹

First recorded in 1885–90; tono- + -plast

Word History and Origins

Origin of tonoplast¹

C20: from Greek tonos tone + _-plast

Example Sentences

Before the discovery of this separate organelle, at least one previous study hinted that tannins were perhaps in the tonoplast.

From Scientific American