Main Entry:

mon·o·cle

Pronunciation:

\ˈmä-ni-kəl\

Function:

noun

Etymology:

French, from Late Latin monoculus having one eye, from Latin mon- + oculus eye — more at eye

Date:

circa 1858

: an eyeglass for one eye

— mon·o·cled \-kəld\ adjective

[monocle illustration]