'Fenestra' definitions:

Definition of 'fenestra'

From: WordNet
noun
A small opening covered with membrane (especially one in the bone between the middle and inner ear)

Definition of 'Fenestra'

From: GCIDE
  • 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]

Synonyms of 'fenestra'

From: Moby Thesaurus