Pronunciation: (lō'shun),[key] —n. 1. Pharm.a liquid, usually aqueous or sometimes alcoholic preparation containing insoluble material in the form of a suspension or emulsion, intended for external application without rubbing, in such skin conditions as itching, infection, allergy, pain, or the like.
2. a liquid cosmetic, usually containing agents for soothing or softening the skin, esp. that of the face or hands.