Zinc ointment means: Zinc ointment is a topical product that has zinc in it. It protects the skin against sunburn and irritation. Zinc ointment can also be used to prevent diaper rash. However, it should never be applied to skin already damaged or inflamed.
(in Medical Dictionary)

What else does Zinc ointment mean?

This salve contains about 20% zinc oxide and paraffin or beeswax. It is used to treat skin conditions.
(in Merlin Dictionary)