English

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Etymology

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From French acidité, from Latin aciditātem, accusative singular of aciditās (sourness, acidity), from acidus (sour, acid). Equivalent to acid +‎ -ity.

Pronunciation

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Noun

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acidity (countable and uncountable, plural acidities)

  1. The quality or state of being acid.
  2. Sourness; tartness; sharpness to the taste.
    the acidity of lemon juice
    Empty stomachs lead to acidity and leave a sour taste in the mouth.
  3. (pathology) Excessive acid quality, as in gastric secretions.
  4. (figurative) A caustic, sour, biting, or bitter quality.

Antonyms

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Derived terms

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Translations

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  NODES
Note 1