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countable and uncountable, plural acidities
The quality or state of being acid. examples
Sourness; tartness; sharpness to the taste. examples
(pathology) Excessive acid quality, as in gastric secretions.
(figurative) A caustic, sour, biting, or bitter quality. quotations examples
"What shall we call it?" he asked. "Why should you not take the chance of perpetuating your own name?" said Summerlee, with his usual touch of acidity.
1912, Arthur Conan Doyle, The Lost World […], London, New York, N.Y.: Hodder and Stoughton
It was a brave, good speech, a speech from that staunch and strong spirit which lay behind all the acidities and angularities of the old zoologist.
1913, Arthur Conan Doyle, “The Time of Death”, in The Poison Belt […], London; New York, N.Y.: Hodder and Stoughton, page 60