单词	zinc oxide
释义	zinc oxide /ziNGk ˈäkˌsīd / noun An insoluble white solid used as a pigment and in medicinal ointments. Chemical formula: ZnO. Sunblocks containing powdered titanium dioxide or zinc oxide dispersed in a base of petroleum jelly became available over 50 years ago.... People who react to standard sunscreens might look for a lotion containing physical blockers like zinc oxide or titanium dioxide. For many parents it is more practical to buy a nonprescription diaper cream or ointment, like zinc oxide, to soothe and protect areas of skin that are prone to diaper rash.
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