Definitions of acid

  1. harsh or corrosive in tone; " an acerbic tone piercing otherwise flowery prose"; " a barrage of acid comments"; " her acrid remarks make her many enemies"; " bitter words"; " blistering criticism"; " caustic jokes about political assassination, talk- show hosts and medical ethics"; " a sulfurous denunciation"
  2. a powerful hallucinogenic drug
  3. ( chemistry) containing acid; " an acid taste"
  4. street name for lysergic acid diethylamide
  5. any of various water- soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
  6. containing acid; " an acid taste"
  7. Sour, sharp, or biting to the taste; tart; having the taste of vinegar: as, acid fruits or liquors. Also fig.: Sour- tempered.
  8. A sour substance.
  9. One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also characterized by the power of destroying the distinctive properties of alkalies or bases, combining with them to form salts, at the same time losing their own peculiar properties. They all contain hydrogen, united with a more negative element or radical, either alone, or more generally with oxygen, and take their names from this negative element or radical. Those which contain no oxygen are sometimes called hydracids in distinction from the others which are called oxygen acids or oxacids.
  10. Sour, and sharp or biting to the taste, as vinegar.
  11. A sour substance, usually liquid; that which combines with a base to form a salt.
  12. 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.).
  13. A sour substance; very pungent; reddens litmus paper.
  14. Sharp: sour.
  15. A sour substance: ( chem.) one of a class of substances, usually sour, which turn vegetable dyes to red, and combine with alkalies, metallic oxides, etc., to form salts.
  16. A sour substance; that which unites with a base to form a salt.
  17. Sharp to the taste, as vinegar; sour; of or like an acid.
  18. Any sour substance.
  19. A compound of hydrogen capable of uniting with a a bse to form a salt.
  20. Sour and sharp to the taste.
  21. A sour substance; a substance capable of uniting with salifiable bases and forming salts.
  22. Something which causes sourness to the taste.
  23. Sour; sharp; biting to the taste.

Usage examples for acid

  1. In case of injuries and irritation to the lids by foreign bodies, the eye may be flooded with a three per cent water solution of boric acid twice daily, or as often as necessary. – Common Diseases of Farm Animals by R. A. Craig, D. V. M.
  2. It is the acid test of a Chestertonian. – Gilbert Keith Chesterton by Maisie Ward
  3. A day or two later, happening to pick it up, he was astonished to find that the rubber had undergone a remarkable change, and that the effect of the acid had been to harden it to such an extent that it would now stand a degree of heat which would have melted it before. – Inventors by Philip Gengembre Hubert
  4. It is convenient to add the acid at ten- minute intervals. – Organic-Syntheses by Conant, James Bryant
  5. But deep down in his wicked purple heart he was saying, " Oh, you nice, fat, pretty little Princess, I should like to eat you instead of these silly acid drops." – The Book of Dragons by Edith Nesbit
  6. So all the afternoon they talked the language and the themes of Second Westings, with the difference that Barbara was all graciousness, instead of her old mixture of acid and sweet. – Barbara Ladd by Charles G. D. Roberts
  7. The cook- boat, occupied as usual by a pair of prolific Mangis and their large small family, was saved by the proverbial " acid drop"- the children crawling out somehow or anyhow from among the branches of the fallen tree. – A Holiday in the Happy Valley with Pen and Pencil by T. R. Swinburne
  8. While I could die at the stake if it would do any good, I couldn't break windows and throw acid. – The Precipice by Elia Wilkinson Peattie
  9. You may be a fine performer when your skies are bright and blue But disaster is the acid that shall prove the worth of you; So just meet your disappointments with a cheery sort of grin, For the man who keeps his temper is the man that's sure to win. – The Path to Home by Edgar A. Guest
  10. But at the end his eyes opened, and sparks of anger- or acid humor- seemed to dance in them. – The Planet Strappers by Raymond Zinke Gallun
  11. The gas which Van Helmont discovered was, as we now know, carbonic acid. – In Search of a Son by William Shepard Walsh
  12. There are various remedies that are claimed to reduce the uric acid content of the blood or the system, and then there are various changes of diet that are supposed to do the same thing. – Psychotherapy by James J. Walsh
  13. His love did not stand the acid test. – Bandit Love by Juanita Savage
  14. The fruit, according to him, is about an inch and a half in diameter, and is intensely acid. – Wild Apples by Henry David Thoreau
  15. The two plates are in a jar of sulphuric acid solution. – Letters of a Radio-Engineer to His Son by John Mills
  16. Phosphoric acid and potash are required by bearing trees for the formation of fruit. – The Pecan and its Culture by H. Harold Hume
  17. In fact, very delicate wings can scarcely be taken out quick enough, and need very little acid. – Directions for Collecting and Preserving Insects by C. V. Riley
  18. The mixture should be stirred so that a solid cake is not formed; the phenylacetic acid is then filtered off. – Organic-Syntheses by Conant, James Bryant
  19. The lines are relatively broad in relation to their depth, a strong- acid effect. – Rembrandt's Etching Technique: An Example by Peter Morse