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Definition of pileum - 2 dictionary results

pi⋅le⋅um

  [pahy-lee-uhm, pil-ee-]
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–noun, plural pi⋅le⋅a  [pahy-lee-uh, pil-ee-uh] .
the top of the head of a bird, from the base of the bill to the nape.
Origin:
1870–75; < NL, special use of L pīleum, var. of pīleus skullcap
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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pi·le·um   (pī'lē-əm)   
n.   pl. pi·le·a (-lē-ə)
The top of a bird's head, extending from the base of the bill to the nape.

[New Latin pīleum, from Latin pīleus, felt cap.]
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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