0 a substance used for removing scale (= a hard white material) from things:
Use a descaler to give shower heads a good clean.
kettle descaler
Vinegar can be used as a descaler in hard water areas.
Online sites sell various descaler brands.
If you live in a hard-water area, use a descaler in the machine at least once a month.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
descaler
