acid
/ˈæsɪd/
noun
- A chemical substance that can dissolve metals, turn blue litmus paper red, and react with bases to form salts. Acids have a sour taste and a pH less than 7.
- The chemistry teacher explained how an acid reacts with a base to produce water and salt.
- Car batteries use a strong acid called sulfuric acid to generate electricity.
- The lemon juice contains a weak acid that gives it a sour taste.
- A slang term for the illegal drug LSD (lysergic acid diethylamide), which causes hallucinations.
- He was arrested for possession of acid at the music festival.
- Many people in the 1960s experimented with acid as part of the counterculture movement.
- The documentary warned about the dangerous effects of taking acid.
Antonyms
adjective
- Having a sharp, sour taste, like that of lemon juice or vinegar.
- She added sugar to the sauce to balance its acid taste.
- The green apple had an acid flavor that made my mouth pucker.
- The wine was too acid for my liking, so I chose a sweeter one.
- Having a pH less than 7; containing acid.
- The soil in this region is very acid, so only certain plants can grow.
- You should test the pH of your pool water to make sure it is not too acid.
- Acid rain can damage forests and harm aquatic life.
- Sharp or critical in tone; bitter or cutting.
- He has an acid sense of humor that some people find offensive.
- Her acid comment made everyone in the room feel uncomfortable.
- The critic wrote an acid review of the new movie, calling it a waste of time.