English Dictionary

soap scum

noun

The buildup of insoluble calcium or magnesium fatty acids from the use of soap with hard water, which leads to a dulling of surfaces and acts as a matrix for trapping soils.

I need to clean the soap scum off the shower door.

意味（1）

The buildup of insoluble calcium or magnesium fatty acids from the use of soap with hard water, which leads to a dulling of surfaces and acts as a matrix for trapping soils.

You can purchase one of the numerous cleaners on the market specifically formulated to dissolve soap scum or use a variety of home remedies for ridding tile, showers and bathtubs from the dull gray film.