An acid is any chemical compound that, when dissolved in water, gives a solution with a pH less than 7.0.

Acid or ACID may also refer to:

Common parlance

• Corrosive substances are commonly (though imprecisely) referred to as acids.
• Lysergic acid diethylamide (LSD), a semisynthetic, psychedelic drug, is commonly referred to as acid.

Computer science

• Acid1, Acid2, and Acid3, webpage rendering test cases.
• Acid (computer virus), a computer virus
• ACID Pro, professional digital audio workshop software
• ACID (Atomicity, Consistency, Isolation, Durability), an initialism for the transactional properties of database management systems

Music

• Acid (band), a Japanese band
• Acid (hip-hop), a Burmese hip-hop group
• Acid house, a subgenre of house music
• Acid jazz, a musical genre
• Acid rock, a style of psychedelic rock
• Acid techno, a style of techno
• Acid trance, a style of trance music
• The sound produced by the Roland TB-303 electronic music synthesizer is commonly described as "acid-like."

Other

• ACiD Productions, an underground digital art group
• Metal Gear Acid, a turn-based collectible card video game

See also

• Acid test (disambiguation)

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