- Anatomy, Zoology. a small opening or perforation, as in a bone, especially between the middle and inner ear.
- Entomology. a transparent spot in an otherwise opaque surface, as in the wings of certain butterflies and moths.
- Architecture. a windowlike opening.
Origin of fenestra
1820–30; < New Latin, special use of Latin fenestra window, hole (in a wall)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for fenestra
Mr. Fenestra had it taken out because the ringing of the bell made him jumpy.
“Fenestra always keeps the cave padlocked,” revealed Tillie.
Fenestra answered it, and when he came back into the kitchen he was in a dreadful temper.
“Fenestra has been very nervous since I came here,” Mrs. Weems contributed.
“Well, thank you kindly,” Mr. Fenestra said, tipping his hat.
- biology a small opening in or between bones, esp one of the openings between the middle and inner ears
- zoology a transparent marking or spot, as on the wings of moths
- architect a window or window-like opening in the outside wall of a building
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
- A small anatomical opening, often closed by a membrane.
- The opening in a bone made by surgical fenestration.
- A specialized opening, as in a surgical instrument.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.