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7 Essential Words of Fall

coleoptile

[koh-lee-op-til, kol-ee-] /ˌkoʊ liˈɒp tɪl, ˌkɒl i-/
noun, Botany
1.
(in grasses) the first leaf above the ground, forming a sheath around the stem tip.
Origin
1865-1870
1865-70; < Neo-Latin coleoptilum < Greek koleó(n) sheath, scabbard + ptílon soft feathers, down
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for coleoptile
  • Dig up the entire plant in the seedling stage, being careful not to tear the seed loose from the coleoptile.
British Dictionary definitions for coleoptile

coleoptile

/ˌkɒlɪˈɒptaɪl/
noun
1.
a protective sheath around the plumule in grasses
Word Origin
C19: from New Latin coleoptilum, from Greek koleon sheath + ptilon down, soft plumage
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
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coleoptile in Science
coleoptile
  (kō'lē-ŏp'tĭl, kŏl'ē-)   
A protective sheath enclosing the shoot tip and embryonic leaves of grasses.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Word Value for coleoptile

14
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