acidnoun
uk/ˈæs.ɪd/us/ˈæs.ɪd/acid noun (CHEMICAL)
B2 [ C or U ] any of various usually liquid substances that can react with and sometimes dissolve other materials:
More examples
- Nitric acid will dissolve most animal tissue.
- Pour exactly 100 ml of sulphuric acid into a measuring cylinder.
- Below pH 6.5 is acid, above pH 7.5 is alkaline.
- phosphoric acid
- a highly corrosive acid
Thesaurus: synonyms and related words
Chemistry: types of chemical
- acid salt
- alkali
- alkali metal
- alkyl
- alkyne
- anhydrous
- dioxide
- hydrate
- hydro-
- insoluble
- oxide
- petrochemical
- polymer
- stain
- stearic acid
- strong acid
- strong base
- universal indicator
- weak acid
- weak base
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acid noun (DRUG)
[ U ] slang for LSD (= an illegal drug that makes people see things that do not exist)
Thesaurus: synonyms and related words
Specific types of drug
- amyl nitrite
- antiretroviral
- blunt
- cisplatin
- coke
- corticosteroid
- designer drug
- dope
- downer
- hash
- junk
- marijuana
- methamphetamine
- mind-altering
- narcotic
- pep pill
- popper
- skunkweed
- stimulant
- weed
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acidadjective
uk/ˈæs.ɪd/us/ˈæs.ɪd/acid adjective (CHEMICAL)
also acidic containing acid, or having similar qualities to an acid:
Thesaurus: synonyms and related words
Flavours & tastes
- acidic
- acidity
- acidulous
- aftertaste
- bite
- bitter
- cheesy
- flavourful
- flavourless
- flavoursome
- full-bodied
- gamy
- plummy
- savour
- sugary
- sweet-and-sour
- sweetness
- tang
- tangy
- toasty
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acid adjective (UNKIND)
used to describe a remark or way of speaking that is cruel or criticizes something in an unkind way:
Thesaurus: synonyms and related words
Ways of speaking
- accent
- accentuate
- aitch
- asperity
- BBC English
- breathe
- cut glass
- get your tongue around/round sth idiom
- intone
- lenis
- modulate
- monotone
- plummy
- pragmatics
- singsong
- soft-spoken
- sotto voce
- speech therapy
- spoken
- trip off the tongue idiom
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