fenestra

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a small opening covered with membrane (especially one in the bone between the middle and inner ear)
• Topics:
otology
• Hypernyms:
orifice, opening, porta
• Hyponyms:
fenestra ovalis, fenestra vestibuli, oval window, fenestra of the vestibule, fenestra rotunda,
fenestra cochleae, round window, fenestra of the cochlea
• Part Holonyms:
ear