anion gap

noun

The difference between the levels of cations and anions in serum, plasma or urine (not counting hydrogen ions, bicarbonate and similar ions that determine the pH of the liquid)

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Meanings

nounanion gap (plural anion gaps)

plural anion gaps

  1. medicineThe difference between the levels of cations and anions in serum, plasma or urine (not counting hydrogen ions, bicarbonate and similar ions that determine the pH of the liquid)

Rhymes & wordplay

Rhymes with anion gap

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Cite this entry
APA

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

MLA

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

Chicago

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

Source: anion gap on Wiktionary, CC BY-SA 4.0.