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air vesicle

American  

noun

Botany.

  1. a large, air-filled pocket, chiefly in plants that float on water, as kelps.

air vesicle British  

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

"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 Scientific  

  1. See float

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.