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Definition of plumule - 2 dictionary results

plu⋅mule

  [ploom-yool]
Use plumule in a Sentence
–noun
1. Botany. the bud of the ascending axis of a plant while still in the embryo.
2. Ornithology. a down feather.
Origin:
1720–30; < NL, L plūmula. See plume, -ule

Related forms:
plu⋅mu⋅lar  [ploom-yuh-ler] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To plumule
plu·mule   (plōōm'yōōl)   
n.  

  1. A down feather.

  2. Botany The rudimentary terminal bud of a plant embryo situated at the end of the hypocotyl, consisting of the epicotyl and often of immature leaves.


[Latin plūmula, diminutive of plūma, feather.]
plu'mu·lose' (plōōm'yə-lōs') adj.
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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