acid

Definitions

1. 1adjective

   Sour, sharp, or biting to the taste; tart; having the taste of vinegar: as, acid fruits or liquors. Also fig.: Sour-tempered.

2. 2adjective

   Of or pertaining to an acid; as, acid reaction.

3. 3noun

   A sour substance.

4. 4noun

   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.

5. 5noun

   street name for lysergic acid diethylamide

   Synonyms

   dosedotelvispanesupermanzen
6. 6noun

   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

7. 7adjective

   having the characteristics of an acid

   "an acid reaction"

8. 8adjective

   harsh or corrosive in tone

   "an acerbic tone piercing otherwise flowery prose"

   "a barrage of acid comments"

   Synonyms

   acerbacerbicacridbitterblisteringcausticsulfuroussulphurousvirulentvitriolic
9. 9adjective

   being sour to the taste

   Synonyms

   acidicacidulentacidulous