acid
Pronunciation
Noun
B1 Intermediate
Quick answer
A chemical substance that can react with a base to form a salt, often with a sour taste and the ability to dissolve certain metals.
Synonyms and antonyms
Usage notes
Acids have a pH below 7, and the stronger the acid, the lower the number.
Test yourself
Which word fits the gap? "Lemon juice contains citric _____, which gives it a sour taste."
Answer: acid
In your own words, what does "acid" mean?
A chemical substance that can react with a base to form a salt, often with a sour taste and the ability to dissolve certain metals.
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