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aerenchyma

[ai-reng-kuh-muh, ai-ren-]
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noun Botany.
  1. a tissue in certain aquatic plants, consisting of thin-walled cells and large intercellular spaces adapted for internal circulation of air.
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Origin of aerenchyma

From New Latin, dating back to 1895–1900; see origin at aer-, parenchyma
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for aerenchyma

aerenchyma

noun
  1. plant tissue with large air-filled spaces, which is typical of aquatic plants and allows air to reach waterlogged parts
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Word Origin

C19: from aer(o)- + Greek enkhuma infusion
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

aerenchyma in Science

aerenchyma

[â-rĕngkə-mə]
  1. A spongy tissue with large air spaces found between the cells of the stems and leaves of aquatic plants. Aerenchyma provides buoyancy and allows the circulation of gases.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.