tonoplast

American

[ton-uh-plast, toh-nuh-] / ˈtɒn əˌplæst, ˈtoʊ nə- /

noun

Botany.

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

tonoplast British

/ ˈtəʊnəˌplæst /

noun

botany the membrane enclosing a vacuole in a plant cell

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tonoplast

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Scientific American

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023