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TOEFL IELTS BNC: 1597 COCA: 3238

acid

Word family 
Related topics: Chemistry, Drug culture
ac·id1 /ˈæsɪd/ ●●○ W3 noun  
1  [countableC, uncountableU]HC a chemical substance that has a pH of less than 7. Strong acids can burn holes in material or damage your skin 酸〔一种化学物质〕
 sulphuric acid
硫酸
2. MDD[uncountableU] informal the drug LSD 迷幻药〔麦角酰二乙胺〕
Examples from the Corpus
acid• We subsequently determined the soluble faecal concentrations of calcium, phosphate, fatty acids, and bile acids.• One factor contributing to this malaise is the buildup of lactic acid in the muscles that can follow heavy drinking.• There was no significant difference between the linoleic acid and the eicosapentaenoic acid supplemented groups.• A chronometer is hidden within all words, and in each length of nucleic acid.• Some of these complexes form immensely complicated sequences of nucleic acids which begin to replicate themselves.• Saturated hydrocarbons can burn to aldehydes, alcohols to organic acids, and aromatics to unsaturated compounds which are pungent and irritating.• But amygdalin reacts with an enzyme in the almond to produce glucose and two very characteristic compounds, benzaldehyde and prussic acid.• Inject a minimum of 10 gallons of sulfuric acid.• sulfuric acid
Related topics: Tastes
acid2 adjectiveadj  
1  CThaving a sharp sour taste 酸的，酸味的 SYN bitter
 a juicy apple with a slightly acid flavour
一个多汁、略带酸味的苹果
2  acid remark/comment/tone etc CRITICIZEan acid remark uses humour in an unkind way to criticize someone 尖酸刻薄的话/评论/口吻等
 I was expecting another of his acid remarks, but he remained silent.
我等着他再说一句刻薄的话，但他不吭声了。
3  the acid test PROVEa way of finding out whether something is as good as people say it is, whether it works, or whether it is true 决定性的考验
 People ask if the team is good enough. This match will be the acid test.
人们问这支球队是不是够好，经过这场比赛的考验就可见分晓。
Examples from the Corpus
the acid test• The acid test of a good leader is the extent to which they select a style to suit the circumstances.• The critical question, the acid test of socialism, is the distribution of power at the point of production.• For my own small study, the acid test was one of relevance.
4  technicalTAS an acid soil does not contain much lime1(3) 〔土壤〕酸性的
 Blueberry bushes need a very acid soil.
蓝莓的生长需要强酸性土壤。
—acidity /əˈsɪdəti/ noun [uncountableU]
Examples from the Corpus
acid• Because of acid rain, this Scandinavian lake is now too acid to support fish.• Smog and acid rain, water pollution and sewage disposal, dams and river-flows will become ever more contentious issues.• Sulphur goes on to produce acid rain.• In general, ferns like organically enriched, moist but well-draining soil on the acid side.
Origin acid2
(1600-1700) French acide, from Latin acidus, from acere “to be sour”
ac·id1 nounacid2 adjectiveadj
Chinese
Syllable
Corpus
TOEFL IELTS BNC: 1597 COCA: 3238
acid

noun¹

 1chemical compound化合物ADJECTIVE | VERB + ACID | ACID + VERB ADJECTIVE➤concentrated, strong濃縮的酸；強酸▸➤dilute, weak稀釋的酸；弱酸▸➤acetic, citric, folic, hydrochloric, lactic, nitric, sulphuric/sulfuric, etc.醋酸、檸檬酸、葉酸、鹽酸、乳酸、硝酸、硫酸等◇the increasingly painful build-up of lactic acid in your muscles乳酸在肌肉中的逐漸增加讓人越來越痛苦➤amino, nucleic氨基酸；核酸➤fatty, trans-fatty脂肪酸；反式脂肪酸◇fish that are rich in omega-3 fatty acids富含 ω-3 脂肪酸的魚類➤stomach胃酸VERB + ACID➤produce製酸▸➤neutralize中和酸◇You will need a special chemical to neutralize the acid.你需要一種特殊的化學物質來中和這種酸。ACID + VERB➤burn sth酸燒⋯◇The acid burned a hole in her coat.她的外套被酸燒了一個洞。➤break sth down酸分解某物◇Stomach acids can break down the poison.胃酸能分解這種毒素。
acid

noun²

 2illegal drug毒品VERB + ACID | PREPOSITION VERB + ACID➤drop服迷幻藥◇They smoke joints and drop acid.他們抽大麻煙捲，吸食迷幻藥。PREPOSITION➤on acid服了迷幻藥的◇He described the music as 'Brahms on acid'.他稱這種音樂為“服了迷幻藥的勃拉姆斯”。  ➡ note at drug
TOEFL IELTS BNC: 1597 COCA: 3238
acid adj.
⇨ bitter 1
TOEFL IELTS BNC: 1597 COCA: 3238

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