acid

acid is part of the Basic English 850.

Pronunciation

• IPA: /ˈæs.ɪd/
•  Audio (US)^{help, file}

Noun

Singular acid

Plural acids

1. (chemistry); (countable) An acid is a liquid with a high number of hydrogen ions in it that can burn things.

   Fruit often has a little acid in it.

   The acid burned the table.

   Acids taste sour but bases taste bitter.

Antonyms

• alkaline
• base

Related words

• acidic
• acidly
• acidity

Adjective

Positive acid

Comparative more acid

Superlative most acid

1. If something is acid, it is like an acid, from an acid, or acidic.

   The factories nearby have made the lake more acid.

2. If something has an acid taste, it is sour.
3. (figurative) If something said or done to you was acid, it was hurtful.

   Their acid comments are painful.

Synonyms

• (acidic)
  • acidic
  • harsh
  • caustic
• (sour)
  • tart
  • bitter
• (hurtful)
  • sharp
  • hurtful
  • critical

Antonyms

• (acidic)
  • base
  • basic
• (sour)
  • sweet
• (hurtful)
  • pleasant
  • constructive

See also

• chemistry
• Periodic Table of Elements
• taste
• pH