OCULUS
Oc "u *lus, n.; pl. Oculi. Etym: [L., an eye. ]
oculus
oc u lus |ˈäkyələs ˈɑkjələs | ▶noun ( pl. oculi |-ˌlī, -ˌlē | ) Architecture a round or eyelike opening or design, in particular: • a circular window. • the central boss of a volute. • an opening at the apex of a dome. ORIGIN mid 19th cent.: from Latin, literally ‘eye. ’
oculus |ˈɒkjʊləs | ▶noun ( pl. oculi |-lʌɪ, -liː | ) Architecture a round or eye-like opening or design, in particular: • a circular window. • the central boss of a volute. • an opening at the apex of a dome. ORIGIN mid 19th cent.: from Latin, literally ‘eye ’.