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TOEFL IELTS BNC: 1597 COCA: 3238

acid noun CHEMICAL

B2 [ C or U ] any of various usually liquid substances that can react with and sometimes dissolve other materials

acetic/hydrochloric/lactic acid醋酸/盐酸/乳酸
Vinegar is an acid.醋是一种酸。

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

acid noun DRUG

[ U ] slang for LSD (= an illegal drug that makes people see things that do not exist)迷幻药,致幻剂

acid adjective CHEMICAL

also acidic containing acid, or having similar qualities to an acid酸的;酸性的;酸味的

an acid taste/smell酸的味道/气味
acid soil酸性土壤

acid adjective UNKIND

used to describe a remark or way of speaking that is cruel or criticizes something in an unkind way尖酸的;尖刻的,刻薄的

her acid wit她的尖酸谐谑
When she spoke her tone was acid.她说话时,语气尖酸刻薄。

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