total hardness

noun

The sum of calcium and magnesium ion concentrations in water, normally expressed in mmol/L

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Meanings

nountotal hardness (plural total hardnesses)

plural total hardnesses

  1. chemistryThe sum of calcium and magnesium ion concentrations in water, normally expressed in mmol/L
Cite this entry
APA

total hardness. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/total%20hardness

MLA

“total hardness.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/total%20hardness. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “total hardness,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/total%20hardness.

Source: total hardness on Wiktionary, CC BY-SA 4.0.