复合形式：
|
| acetic acid n | uncountable (compound: ingredient of vinegar) | SCSimplified Chinese 醋酸
TCTraditional Chinese 醋酸 |
| acetylsalicylic acid | (pharmacology) | SCSimplified Chinese 乙酰水杨酸 |
| | | SCSimplified Chinese 阿司匹林 ā sī pǐ lín |
| acid rain n | (pollution falling from sky) | SCSimplified Chinese 酸雨 suān yǔ |
| | A lot of statues have been ruined due to acid rain breaking down the stone. |
| acid reflux n | uncountable (heartburn) | SCSimplified Chinese 胃酸反流 wèi suān fǎn liú |
| | My doctor says my acid reflux has damaged my esophagus. |
| acid test n | figurative (decisive indicator) (比喻) | SCSimplified Chinese 严峻的考验 yán jùn de kǎo yàn |
| | The acid test in becoming a good cook is making a perfect soufflé. |
| acid test n | (chemistry: litmus test) (本义) | SCSimplified Chinese 酸性测试 suān xìng cè shì
TCTraditional Chinese 酸性測試 |
| acid trip | (drug-induced experience) | SCSimplified Chinese 迷幻之旅 |
| | | SCSimplified Chinese 吃了迷幻药后产生的幻觉 |
| acid-fast adj | (resistant to acid) | SCSimplified Chinese 耐酸的，抗酸的 kàng suān de |
| acid-proof adj | (material) | SCSimplified Chinese 防酸的，耐酸的 |
| acrylic acid n | uncountable (chemical compound) | SCSimplified Chinese 丙烯酸
TCTraditional Chinese 丙烯酸 |
| | | SCSimplified Chinese 压克力酸 |
| amino acid n | (organic compound) | SCSimplified Chinese 氨基酸 ān jī suān
TCTraditional Chinese 氨基酸 |
| | L-tryptophan is an amino acid thought to promote sleep. |
| | Proteins are made up of amino acids. |
| ascorbic acid n | uncountable (chemical compound) | SCSimplified Chinese 抗坏血酸 kàng huài xiě suān / kàng huài xuè suān
TCTraditional Chinese 抗壞血酸 |
| | Ascorbic acid has the molecular formula C6H8O6, but is more commonly known as vitamin C. |
| ascorbic acid n | uncountable (vitamin C) | SCSimplified Chinese 维生素C wéi shēng sù
TCTraditional Chinese 維生素C |
| | Ascorbic acid is found in many fruits, such as oranges. |
benzoic acid,
benzenecarboxylic acid,
phenylformic acid n | (chemistry: preservative, germicide) | SCSimplified Chinese 苯甲酸 |
| | | SCSimplified Chinese 苯酸 |
boric acid,
orthoboric acid n | uncountable (chemistry, manufacturing) | SCSimplified Chinese 硼酸 |
| citric acid n | uncountable (flavoring: sour salt, mild acid found in citrus fruit) | SCSimplified Chinese 柠檬酸 níng méng suān
TCTraditional Chinese 檸檬酸 |
| | Citric acid is what gives oranges, grapefruits and lemons their tangy flavor. |
| deoxyribonucleic acid n | (genetics: molecule) (遗传学) | SCSimplified Chinese 脱氧核糖核酸 tuō yǎng hé táng hé suān |
| fatty acid n | (biochemistry) | SCSimplified Chinese 脂肪酸
TCTraditional Chinese 脂肪酸 |
| folic acid n | uncountable (B vitamin) (B族维生素) | SCSimplified Chinese 叶酸 |
| glutamic acid n | (biochemistry: amino acid) | SCSimplified Chinese 谷氨酸 |
| hyaluronic acid n | (biochemistry: monopolysaccharide) | SCSimplified Chinese 透明质酸 |
| | | SCSimplified Chinese 破尿酸 |
| hydrochloric acid n | (chemistry) | SCSimplified Chinese 盐酸
TCTraditional Chinese 鹽酸 |
| | | SCSimplified Chinese 氢氯酸 |
| lactic acid n | uncountable (chemical compound) (化合物) | SCSimplified Chinese 乳酸
TCTraditional Chinese 乳酸 |
| LSD n | initialism (lysergic acid diethylamide) | SCSimplified Chinese 麦角酸酰二乙胺 |
| | | SCSimplified Chinese 摇头丸 yáo tóu wán
TCTraditional Chinese 搖頭丸 |
| | | SCSimplified Chinese 致幻药 |
| malic acid | (chemistry) | SCSimplified Chinese 苹果酸 |
niacin,
nicotinic acid,
vitamin B3 n | (chemical compound) (化合物) | SCSimplified Chinese 烟酸 yān suān |
nitric acid,
aqua fortis n | uncountable (corrosive liquid) | SCSimplified Chinese 硝酸
TCTraditional Chinese 硝酸 |
nonacid,
non-acid adj | (not acidic) | SCSimplified Chinese 非酸性的 fēi suān xìng de |
| | | SCSimplified Chinese 无酸性的 fēi suān xìng de，wú suān xìng de |
| nucleic acid n | (molecule: genetic information) (分子：遗传信息) | SCSimplified Chinese 核酸
TCTraditional Chinese 核酸 |
oleum,
fuming sulfuric acid,
pyrosulfuric acid n | (chemistry: corrosive liquid) | SCSimplified Chinese 发烟硫酸 |
omega-3 fatty acid,
n-3 fatty acid n | (biochemistry) | SCSimplified Chinese 欧米伽-3脂肪酸 |
oxyacid,
oxygen acid n | (chemistry) | SCSimplified Chinese 含氧酸 |
| PABA n | acronym (para-aminobenzoic acid) | SCSimplified Chinese 对氨基苯酸 |
| para-aminobenzoic acid n | (part of the folic acid molecule) | SCSimplified Chinese 对氨基苯甲酸 |
| prussic acid n | dated (hydrocyanic acid) | SCSimplified Chinese 氢氰酸 |
| salicylic acid n | (chemical) | SCSimplified Chinese 水杨酸 |
| sorbic acid n | (food: natural preservative) | SCSimplified Chinese 山梨酸 |
| stomach acid n | (gastric juice) | SCSimplified Chinese 胃酸 |
sulfuric acid (US),
sulphuric acid (UK),
oil of vitriol n | (chemistry) | SCSimplified Chinese 硫酸 liú suān
TCTraditional Chinese 硫酸 |
| tannic acid n | (bitter substance in tea and wine) | SCSimplified Chinese 丹宁酸 dān níng suān
TCTraditional Chinese 單寧酸 |
| | | SCSimplified Chinese 鞣酸 dān níng suān，róu suān |
| | The tannic acid in wine and tea can stain your teeth. |
| tannic acid n | (substance used in dyes and tanning) | SCSimplified Chinese 鞣酸 róu suān |
| uric acid n | uncountable (acid present in urine) | SCSimplified Chinese 尿酸 niào suān |
| | The lab will test the level of uric acid in the urine samples. |