Found 2 items, similar to Fenestra.
English → English (WordNet) Definition: fenestra fenestra n : a small membrane-covered opening (especially one in the bone between the middle and inner ear) [also: fenestrae (pl)]
English → English (gcide) Definition: Fenestra 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. [1913 Webster]