air vesicle

air vesicle

noun Botany.
a large, air-filled pocket, chiefly in plants that float on water, as kelps.
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World English Dictionary
air vesicle or air cavity
 
n
1.  a large air-filled intercellular space in some aquatic plants
2.  a large intercellular space in a leaf into which a stoma opens
 
air cavity or air cavity
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
air vesicle  
See float.
The American Heritage® Science Dictionary
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