ˈäkyələs noun
( plural ocu·li -yəˌlī)
Etymology: Latin, literally, eye — more at eye
1. : an architectural member resembling or suggesting an eye: as
a. : the central boss of a volute
b. : a round opening in a dome
c. : oeil-de-boeuf
2. : eye
3. : a painted or metal image of a human eye placed on the bow or other part of a boat (as in ancient Egypt)