from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Anatomy A small anatomical opening, as in a bone.
- noun An opening in a bone made by surgical fenestration.
- noun Zoology A transparent spot or marking, as on the wing of a moth or butterfly.
- noun Architecture A windowlike opening.
from The Century Dictionary.
- noun In anatomy, a foramen; specifically; one of certain foramina of the inner ear. See phrases below.
- noun In entom.: A transparent spot in an opaque surface, as in the wings of certain butterflies and moths
- noun One of two perforations, covered with membrane, on the head of a cockroach, above the insertions of the antennæ. They have been regarded as rudimentary ocelli. See cut under
- noun In surgery, an opening in a splint or immovable dressing to permit of inspection of the part or to relieve pressure.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Anat.) A small opening; esp., one of the apertures, closed by membranes, between the tympanum and internal ear.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun an
openingin a body, sometimes with a membrane
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a small opening covered with membrane (especially one in the bone between the middle and inner ear)
from The American Heritage® Dictionary of the English Language, 4th Edition
‘Quanti canicula ille in fenestra’ on February 12, 2010 at 12: 07 am Claustrophobic inspector
The word fenestra is illustrated by a previous section of the Rule, No.LXXXII. p. 30.
This part has a round cavity called fenestra rotunda, which is covered with a thin elastic membrane, and looks into the tympanum.
The stapes, or stirrup, has its end of an oval shape, which fits a small hole called fenestra ovalis, in that part of the ear called the labyrinth, or innermost chamber of the ear.
This encloses an open space or "fenestra," so that the neck was not completely protected above.
It comes from the Latin de + fenestra, meaning window.
"In ipsa uero ecclesia. in aliqquo loco intermedio inter sorores et exteriores aptetur aliqua fenestra ferrea competentis magnitudinis. in qua fiant sermones: et in aliquo loco apto due fenestre paruule ferrate ad confessiones audiendas."
Verum quia non est expressum de quantitate fenestrarum, ordino, quod maior fenestra duplicata in longitudine sex pedes habeat, spacium sive banca inter cancellos unius pedis et palmi, cancelli duplices ferrei et quadratis virgis ita stricti, ut ne ovum galline possit transmitti.
I should have mentioned the temporal fenestra thing, but I wrote it late last night :P
It now seems that nearly all of the characters proposed initially to distinguish Tupuxuara from other pterodactyloid pterosaurs are problematic in not being unique to the genus, but in fact Tupuxuara is clearly diagnosable, being unique in having a sort of deep premaxillary crest in which the dorsal margin extends subparallel to the dorsal margin of the nasoantorbital fenestra (Martill & Naish 2006, p. 931).