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exine

 - 2 dictionary results

ex⋅ine

  [ek-seen, -sahyn]
Use exine in a Sentence
–noun Botany.
the outer coat of a spore, esp. a pollen grain.
Also, extine.

Origin:
1880–85; ex- 1 + -ine 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To exine
ex·ine   (ěk'sēn', -sīn')   
n.  The outer layer of the wall of a spore or pollen grain. Also called exosporium.

[ex(o)- + Greek īs, īn-, tendon; see wei- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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