ˈ ̷ ̷ˌ ̷ ̷ noun
1.
a. obsolete : the lens of the eye
b. : the eyepiece of an optical instrument (as a microscope or a telescope)
c. : a lens for personal wear that is used to aid vision or correct defects of vision ; specifically : monocle
d. eyeglasses plural : glasses , spectacles
2. : eyecup 1a