oculus
nounUK /ˈɒk.jʊ.ləs/ · US /ˈɑk.jə.ləs/
Etymology Learned borrowing from Latin oculus (“eye”). Doublet of occhio.
› A window or other opening that has an oval…
1
Architecture The central boss of a volute.
2
Architecture An opening at the apex of a dome.
- One can glimpse the sky through the oculus of the Pantheon in Rome.