acid

noun
B2+
1
B2+
a chemical, usually a liquid, that contains hydrogen and has a pH of less than seven. The hydrogen can be replaced by a metal to form a salt. Acids usually have a bitter sharp taste and can often burn holes in or damage things they touch.
اسید
see also acetic acid, amino acid, boric acid, citric acid, fatty acid, folic acid, formic acid, hydrochloric acid, lactic acid, nitric acid, nucleic acid, sulphuric acid
2
a powerful illegal drug that affects people’s minds and makes them see and hear things that are not really there
ال اس دی, مواد مخدر روانگردان, توهم زا
They smoke joints and drop acid.
He described the music as ‘Brahms on acid’.
synonym LSD
adjective
C1+
1
C1+
that contains acid or has the essential characteristics of an acid; that has a pH of less than seven
اسیدی, خورنده
compare alkaline
2
C1+
that has a bitter sharp taste
ترش
acid fruit
It’s a very juicy fruit with a slightly acid flavour.
synonym sour
3
critical and unkind
نیشدار, تلخ, کنایه آمیز
an acid wit
synonym sarcastic, cutting