tonoplast

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

noun Botany.

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

Origin of tonoplast

First recorded in 1885–90; tono- + -plast
Also called vacuolar membrane.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for tonoplast

tonoplast

/ (ˈtəʊnəˌplæst) /

noun

botany the membrane enclosing a vacuole in a plant cell

Word Origin for tonoplast

C20: from Greek tonos tone + -plast
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

Medicine definitions for tonoplast

tonoplast

[ tōnə-plăst′ ]

n.

An intracellular structure or vacuole.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.