A wash or lotion for application to the eyes.(noun)
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Use "eyewater" in a sentence
"It was ever his mammy's wish to have a priest in the family and with her now close to dying from an over-affinity with Paddy's eyewater, Seamais is inclined to indulge her."
"I'm weeping a combination of both big fat tears of sorrow and squirtings of gleeful hysterical laughter-induced eyewater."
"An invaluable eyewater for weak eyes and all kinds of sore and inflamed eyes."