Hypertext Webster Gateway: "fenestra"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Fenestra \Fe*nes"tra\, n.; pl. {Fenestr[ae]}. [L., a window.]
(Anat.)
A small opening; esp., one of the apertures, closed by
membranes, between the tympanum and internal ear.
From WordNet (r) 1.7 (wn)
fenestra
n : a small membrane-covered opening (especially one in the bone
between the middle and inner ear)
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