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air vesicle

noun Botany.
  1. a large, air-filled pocket, chiefly in plants that float on water, as kelps.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for air vesicle

air vesicle

air cavity

noun
  1. a large air-filled intercellular space in some aquatic plants
  2. a large intercellular space in a leaf into which a stoma opens
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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

air vesicle in Science

air vesicle

  1. See float.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.