Meaning & use

limescale

noun·Everyday

Last updated

UK/ˈlaɪm.skeɪl/
US/ˈlaɪm.skeɪl/

Meaning

  1. noununcountable

    A hard, chalky deposit of calcium carbonate that forms inside kettles, pipes, and other containers where hard water is heated or stored.

    Grammar: Uncountable; used without 'a' or a plural form. Say 'a lot of limescale', not 'a limescale'.

    Patterns

    • limescale builds up
    • remove limescale
    • limescale deposits

    The kettle is full of limescale because the water here is very hard.

    You can remove limescale from the shower head by soaking it in vinegar.

    Limescale builds up quickly in pipes that carry hot water.

Common combinations

limescale buildup
Regular cleaning prevents limescale buildup in the bathroom.
remove limescale
This product is designed to remove limescale from taps and tiles.
limescale deposits
Limescale deposits can block the flow of water through the pipe.
hard water limescale
Hard water limescale is a common problem in many households.

Synonyms and how they differ

scale
A shorter, more general term for the same mineral deposit; 'limescale' is more specific and common in everyday British English.
fur
Used for the coating inside kettles or boilers; less technical than limescale and not used for pipes.

Commonly confused: limescale or limestone?

limescale vs limestone

Limestone is a type of rock; limescale is the deposit that forms from hard water.

Practice

The kettle is full of ______ because the water is so hard.

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