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

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