acid

• 指pH值小于7的化学物质，也形容味道酸、尖锐或言辞刻薄、尖刻。

Describes a chemical substance with a pH less than 7, or something sharp, sour, or biting in taste or manner.

1. Sharp or biting in speechB2informal

   Describing language or remarks that are critical, sarcastic, or unkind.

   刻薄的

   • She made an acid comment about his poor performance.
   • His acid wit often offended people at parties.
   • The critic's acid review ruined the play's opening night.

   同义词acerbicbittercausticcuttingmordantscathingsharptrenchantvitriolic

   反义词gentlekindmildpleasantsweettactfulwarm

2. Sharp or sour in tasteB1formal

   Having a sharp, sour taste like lemon or vinegar.

   酸的

   • The lemonade had an acid flavor that made her pucker.
   • He prefers acid fruits like green apples.
   • The wine was too acid for my taste.

   同义词acerbacerbicpungentsharpsourtangytartvinegary

   反义词blandmildsugarysweet

3. Chemically acidicB2formalscientific

   Having the properties of an acid in chemistry, with pH less than 7.

   酸性的

   • Acid solutions turn blue litmus paper red.
   • The soil is too acid for growing tomatoes.
   • They tested the substance to see if it was acid or alkaline.

   同义词acidic

   反义词alkalinebasic

• 一种pH值小于7的化学物质，能够给出质子或接受电子，通常具有酸味和腐蚀性。

A noun referring to a chemical substance with a pH less than 7, capable of donating protons or accepting electrons, often sour-tasting and corrosive.

1. Chemical substanceB2formalscientific

   A chemical compound with a sour taste that turns blue litmus paper red and reacts with bases to form salts.

   酸

   • Sulfuric acid is used in car batteries.
   • The chemist carefully handled the hydrochloric acid.
   • Citric acid gives lemons their sour taste.

   反义词alkalibase

2. LSD (drug)C1slang

   Slang term for lysergic acid diethylamide, a powerful hallucinogenic drug.

   迷幻药（LSD）

   • He tripped out on acid at the festival.
   • Acid is known for causing intense visual hallucinations.
   • The dealer was caught selling acid to students.

   同义词lsdlysergic acid diethylamide

3. Sour substanceA2informal

   A sour-tasting substance, often referring to acidic foods or drinks.

   酸味物质

   • Vinegar contains acetic acid.
   • The candy has a strong acid flavor.
   • Too much acid in your stomach can cause heartburn.

   反义词alkalibase