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/ˈæsɪd/
Meaning & Definition
noun
A substance with a sour taste that turns litmus red and reacts with bases to form salts.
The chemist demonstrated the properties of hydrochloric acid in the laboratory.
A chemical compound with a pH of less than 7, containing hydrogen ions that can be donated in a reaction.
Citric acid is commonly found in citrus fruits.
A substance that donates protons or hydrogen ions and accepts electrons.
Acetic acid is the main component of vinegar.
adjective
Having a sour or sharp taste.
The acid taste of the lime added a refreshing kick to the drink.
Relating to the properties of acids.
The acid solution needs to be handled with care to avoid skin irritation.
Etymology
Late Middle English: from Latin acidus 'sour, sharp', from acere 'to be sour'.
Common Phrases and Expressions
acid test:
A definitive test of the quality or value of something.
acid rain:
Rainfall made acid by atmospheric pollution.
hydrochloric acid:
A strong acidic solution of hydrogen chloride in water.
Related Words
Slang Meanings
LSD, a popular hallucinogenic drug.
He was tripping on acid all night.
A musical style or culture associated with the use of psychedelic drugs.
The acid music scene really took off in the 90s.