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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
“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
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Word History and Origins

Origin of tonoplast1

First recorded in 1885–90; tono- + -plast
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Word History and Origins

Origin of tonoplast1

C20: from Greek tonos tone + -plast
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Example Sentences

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

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tonometertons