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Traditional
Pīnyīn
English Definition Add a new word to the dictionary Simplified
HSK
charactercopystroke orderAIpronouncebaikeskritterexampleCorrect
  *酸* | 酸* | *酸
sour / tart / sick at heart / grieved / sore / aching / pedantic / impractical / to make sarcastic remarks about sb / an acid
HSK 4
formylic acid (HCOOH) / formic acid / methanoic acid
hyaluronic acid / hyaluronan
pyruvic acid CH3COCOOH
ribonucleic acid (RNA)
pungent (taste) / bitter / fig. sad / miserable
HSK 7-9
gastric acid
acetic acid (CH3COOH) / ethanoic acid
(Tw) (biochemistry) theanine
vitamin C / ascorbic acid
linolenic acid
acrylic acid C3H4O2
weak acid
benzoic acid C6H5COOH
creatine
acetic acid (CH3COOH) / acetate
citric acid
to feel sad
HSK 7-9
lactic acid
hyaluronic acid / hyaluronan
fatty acid
salicylic acid
taurine
nitric acid
carbonic acid / carbonate
phenylalanine (Phe), an essential amino acid
sour grapes (set expr. based on Aesop) / lit. to say grapes are sour when you can't eat them
glacial acetic acid
tannic acid (loanword)
(of a scholar) impoverished, shabby and pedantic / impoverished pedant
deoxyribonucleic acid / DNA
wretched / poverty-stricken / unpresentable (for clothing, gifts etc)
oxalic acid C2H2O4
alanine (Ala), an amino acid
harsh / scathing / acid (remarks)
oleic acid
(Tw) threonine
argnine (Arg), an essential amino acid
hydrohalic acid (e.g. hydrofluoric acid HF 氫氟酸|氢氟酸, hydrochloric acid HCl 鹽酸|盐酸 etc)
(Tw) amino acid
nitrous acid
to experience one's full share of sorrows (idiom)
isoleucine (Ile), an essential amino acid
(Tw) tryptophan
double-stranded nucleic acid
nucleotide
bitter and sad
histidine (His), an essential amino acid
leucine (Leu), an essential amino acid
carboxylic acid
polyunsaturated fatty acid
sweet and sour
sulfurous acid H2SO3
nucleic acid / (coll.) nucleic acid test (abbr. for 核酸檢測|核酸检测)
glycine (Gly), an amino acid
phenol C6H5OH / same as 苯酚
phosphoric acid
humic acid
hypobromous acid HOBr
hypochlorous acid HOCl (bleach)
hydrobromic acid HBr
chloric acid HClO3 / chlorate
acid-resistant
methionine (Met), an essential amino acid
putrid belching with regurgitation of stomach acid (medical term)
tryptophan (Trp), an essential amino acid
saturated fatty acid (SFA)
hydrochloric acid HCl / also written 鹽酸|盐酸
pantothenic acid / vitamin B5 / to surge up (of acid in the stomach)
peptide (two or more amino acids linked by peptide bonds CO-NH)
lysine (Lys), an essential amino acid
tannin
messenger RNA, mRNA
glycolic acid C2H4O3
cysteine (Cys), an amino acid / mercaptoethyl amine
fluorosilicic acid H2SiF6 / fluorosilicate
stearic acid / stearate
carboxylic acid
DNA
amino acid
cyanic acid HCN
proline (Pro), an amino acid
acid reflux / regurgitation
deoxyribonucleoside monophosphate / dNMP
hydrofluoric acid HF
isotretinoin (used in acne treatment)
polypeptide, a chain of amino acids linked by peptide bonds CO-NH, a component of protein / same as 多肽
sour grapes (set expr. based on Aesop) / lit. to say grapes are sour when you can't eat them
niacin (vitamin B3); nicotinic acid; Pyridine-3-carboxylic acid C6H5NO2
thiocyanic acid
aspartic acid (Asp), an amino acid
methionine (Met), an essential amino acid
sulfuric acid H2SO4 / sulfate
serine (Ser), an amino acid
valine (Val), an essential amino acid
tartaric acid
threonine (Thr), an essential amino acid
(old) to be jealous

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