Having only a single eye, particularly when a greater number is normal. / Being able to see out of only one eye.

The lens (or combination of lenses) at the eye end of a microscope or telescope by which the image is viewed.

Tiredness or pain in the eyes, sometimes accompanied by headache, caused by excessive or improper use of the eyes, or by uncorrected defects of vision.

(US) an eyebath / coon eyes / A shield surrounding the eyepiece of a camera.

A dropper for administering eyedrops.

An artificial lens, especially one of a pair. / A monocle. / An eyepiece. / (obsolete) The lens of the eye. / attributive form of eyeglasses

(countable, uncountable) The washing out of the eyes with copious water (usually water alone) to quickly remove an irritant, as for example in laboratories and industrial plants.

To fool with nonsense or flattery. / (intelligence) To keep information secret by sending false information to many people in one's own organization, and correct information to a select few.

a cup-shaped vessel used to apply eyewash

Alternative spelling of walleyed