acid

noun

/ˈæsɪd/

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[uncountable, countable] (chemistry) 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.
- The acid burned a hole in her coat.
- Stomach acids can break down the poison.
- You will need a special chemical to neutralize the acid.
compare alkali
Wordfinder
- acid
- catalyst
- chemistry
- compound
- formula
- molecule
- pH
- react
- solution
- valency
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 acidTopics Physics and chemistryb2
Oxford Collocations Dictionary
adjective
- concentrated
- strong
- dilute
- …
verb + acid
- produce
- neutralize
acid + verb
- burn something
- break something down
See full entry
[uncountable] (slang) a powerful illegal drug that affects people’s minds and makes them see and hear things that are not really there synonym LSD
- They smoke joints and drop acid.
- He described the music as ‘Brahms on acid’.
Oxford Collocations Dictionary
verb + acid
- drop
preposition
- on acid
See full entry

Word Originearly 17th cent. (in the sense ‘sour-tasting’): from Latin acidus, from acere ‘be sour’.

acid

adjective

/ˈæsɪd/

jump to other results

(specialist) that contains acid or has the essential characteristics of an acid; that has a pH of less than seven
- Rye is tolerant of poor, acid soils.
compare alkalineTopics Physics and chemistryc1
that has a bitter sharp taste synonym sour
- acid fruit
- It’s a very juicy fruit with a slightly acid flavour.
Synonyms bitter
bitter
- pungent
- sour
- acrid
- sharp
- acid
These words all describe a strong, unpleasant taste or smell.
- bitter (of a taste or smell) strong and usually unpleasant; (of food or drink) having a bitter taste.
- pungent (of a smell or taste) strong and usually unpleasant; (of food or smoke) having a pungent smell or taste:
  the pungent smell of burning rubber
- sour (of a taste) bitter like the taste of a lemon or of fruit that is not ready to eat; (of food or drink) having a sour taste:
  Too much pulp produces a sour wine.
- acrid (of a smell or taste) strong and unpleasant; (of smoke) having an acrid smell:
  acrid smoke from burning tyres
- sharp (of a taste or smell) strong and slightly bitter; (of food or drink) having a sharp taste:
  The cheese has a distinctively sharp taste.
- acid (of a taste or smell) bitter, like the taste of a lemon or of fruit that is not ready to eat; (of food or drink) having an acid taste.
which word?A bitter taste is usually unpleasant, but some people enjoy the bitter taste of coffee or chocolate. No other word can describe this taste. A sharp or pungent taste is more strong than unpleasant, especially when describing cheese. Sharp, sour and acid all describe the taste of a lemon or a fruit that is not ready to eat. An acrid smell is strong and unpleasant, especially the smell of smoke or burning, but not the smell of food.Patterns
- a(n) bitter/pungent/sour/acrid/sharp/acid taste/flavour
- a(n) bitter/pungent/acrid/sharp/acid smell/odour
- a(n) bitter/sour/sharp/acid fruit
- pungent/sharp cheese
- pungent/acrid smoke
(of a person’s remarks) critical and unkind synonym sarcastic, cutting
- an acid wit
Topics Personal qualitiesc2

Word Originearly 17th cent. (in the sense ‘sour-tasting’): from Latin acidus, from acere ‘be sour’.

单词	acid
释义	acid noun /ˈæsɪd/ /ˈæsɪd/ jump to other results [uncountable, countable] (chemistry) 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. The acid burned a hole in her coat. Stomach acids can break down the poison. You will need a special chemical to neutralize the acid. compare alkali Wordfinder acid catalyst chemistry compound formula molecule pH react solution valency 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 acidTopics Physics and chemistryb2 Oxford Collocations Dictionaryadjective concentrated strong dilute … verb + acid produce neutralize acid + verb burn something break something down See full entry [uncountable] (slang) a powerful illegal drug that affects people’s minds and makes them see and hear things that are not really there synonym LSD They smoke joints and drop acid. He described the music as ‘Brahms on acid’. Oxford Collocations Dictionaryverb + acid drop preposition on acid See full entry Word Originearly 17th cent. (in the sense ‘sour-tasting’): from Latin acidus, from acere ‘be sour’. acid adjective /ˈæsɪd/ /ˈæsɪd/ jump to other results (specialist) that contains acid or has the essential characteristics of an acid; that has a pH of less than seven Rye is tolerant of poor, acid soils. compare alkalineTopics Physics and chemistryc1 that has a bitter sharp taste synonym sour acid fruit It’s a very juicy fruit with a slightly acid flavour. Synonyms bitterbitter pungent sour acrid sharp acid These words all describe a strong, unpleasant taste or smell. bitter (of a taste or smell) strong and usually unpleasant; (of food or drink) having a bitter taste. pungent (of a smell or taste) strong and usually unpleasant; (of food or smoke) having a pungent smell or taste: the pungent smell of burning rubber sour (of a taste) bitter like the taste of a lemon or of fruit that is not ready to eat; (of food or drink) having a sour taste: Too much pulp produces a sour wine. acrid (of a smell or taste) strong and unpleasant; (of smoke) having an acrid smell: acrid smoke from burning tyres sharp (of a taste or smell) strong and slightly bitter; (of food or drink) having a sharp taste: The cheese has a distinctively sharp taste. acid (of a taste or smell) bitter, like the taste of a lemon or of fruit that is not ready to eat; (of food or drink) having an acid taste. which word?A bitter taste is usually unpleasant, but some people enjoy the bitter taste of coffee or chocolate. No other word can describe this taste. A sharp or pungent taste is more strong than unpleasant, especially when describing cheese. Sharp, sour and acid all describe the taste of a lemon or a fruit that is not ready to eat. An acrid smell is strong and unpleasant, especially the smell of smoke or burning, but not the smell of food.Patterns a(n) bitter/pungent/sour/acrid/sharp/acid taste/flavour a(n) bitter/pungent/acrid/sharp/acid smell/odour a(n) bitter/sour/sharp/acid fruit pungent/sharp cheese pungent/acrid smoke (of a person’s remarks) critical and unkind synonym sarcastic, cutting an acid wit Topics Personal qualitiesc2 Word Originearly 17th cent. (in the sense ‘sour-tasting’): from Latin acidus, from acere ‘be sour’.
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