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fenestra

[fi-nes-truh] /fɪˈnɛs trə/
noun, plural fenestrae
[fi-nes-tree] /fɪˈnɛs tri/ (Show IPA)
1.
Anatomy, Zoology. a small opening or perforation, as in a bone, especially between the middle and inner ear.
2.
Entomology. a transparent spot in an otherwise opaque surface, as in the wings of certain butterflies and moths.
3.
Architecture. a windowlike opening.
Origin
1820-1830
1820-30; < Neo-Latin, special use of Latin fenestra window, hole (in a wall)
Related forms
fenestral, adjective
unfenestral, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un-fenestral

fenestra

/fɪˈnɛstrə/
noun (pl) -trae (-triː)
1.
(biology) a small opening in or between bones, esp one of the openings between the middle and inner ears
2.
(zoology) a transparent marking or spot, as on the wings of moths
3.
(architect) a window or window-like opening in the outside wall of a building
Derived Forms
fenestral, adjective
Word Origin
C19: via New Latin from Latin: wall opening, window
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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un-fenestral in Medicine

fenestra fe·nes·tra (fə-něs'trə)
n. pl. fe·nes·trae (-trē')

  1. A small anatomical opening, often closed by a membrane.

  2. The opening in a bone made by surgical fenestration.

  3. A specialized opening, as in a surgical instrument.


fe·nes'tral adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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