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Results for acid

Definitions of acid:

part of speech: adjective

A sour substance; very pungent; reddens litmus paper.

part of speech: adjective

1. A compound of an electronegative element or radical with hydrogen; it forms salts by replacing all or part of the hydrogen with an electropositive element or radical. An acid containing one displaceable atom of hydrogen in the molecule is called monobasic; one containing two such atoms, bibasic; and one containing more than two, polybasic. 2. In popular language, any chemical compound which has a sour taste. 3. Sour, sharp to the taste: 4. Relating to an acid; giving an acid reaction, turning a vegetable blue red. ( For definitions of the different acids, see the adjectives or under acidum; the acids official in the U. S. and Br. Pharmacopeias are defined under acidum.).

Usage examples for acid:

  • Harley P. had told her that night that Bob would " stand the acid "The Long Chance", Peter B. Kyne
  • She gave the wine back to her daughter, saying good- humoredly: " I have tasted sweeter, but acid is refreshing in this heat." "The Complete Historical Romances of Georg Ebers", Georg Ebers
  • It was extremely cool, and had a sweet taste, mingled with acid in fact, it was the likest thing to lemonade I ever tasted, and was most grateful and refreshing. "The Coral Island", R.M. Ballantyne

Word of the day


The proteinsplitting ferment of the pancreas, it differs from pepsin in that it acts better in a slightly alkaline medium such as it finds in the intestine. It is used in medicine in cases of intestinal indigestion in doses of gr. 8- 15 ( 0. 5- 1. 0) in keratin coated pills or capsules; it is also used to peptonize milk, and as a solvent of diphtheritic membrane, and has been given by hypodermic injection in connection with amylopsin in the treatment of cancer. ...