The Collaborative International Dictionary of English v.0.48:
Eyedrop \Eye"drop"\, n. A tear. [Poetic] --Shak. [1913 Webster]WordNet (r) 3.0 (2006):
eyedrop n 1: a drop from an eye dropper [syn: eyedrop, eye-drop] 2: a method of irrigating the eye used by ophthalmologists [syn: eyedrop, eye-drop]