collyrium n 1: lotion consisting of a solution used as a cleanser for the eyes [syn: {eye-lotion}, {eyewash}, {collyrium}]
Collyrium \Col*lyr"i*um\, n.; pl. E. {Collyriums}, L. {Collyria}. [L., fr. Gr. ?.] (Med.) An application to the eye, usually an eyewater. [1913 Webster]