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Meaning of soap test | Babel Free

Noun CEFR B2

Definitions

A test for determining the hardness of water by shaking it up with liquid soap (and not detergent).

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

soap tree soap-dispenser soapball soapbark soapberry soapbloom

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