- 碱性 jiǎnxìng alkalinity; alkalinethe chemical property of being alkaline, characterized by the ability to neutralize acids and turn litmus paper indicators such as litmus paper blue
- 胆碱 dǎnjiǎn cholinecholine; an amine compound essential for liver function and brain development, often grouped with the vitamin B complex
- 烧碱 shāojiǎn caustic sodacaustic soda; sodium hydroxide. A common white solid chemical used in making soap, paper, and glass. Also called [[火碱|火鹼|huo3 jian3]] or [[苛性钠|苛性鈉|ke1 xing4 na4]].
- 碱基 jiǎnjī base(chemical) base; nucleobase
- 纯碱 chúnjiǎn soda ashsodium carbonate; commonly used as a raw material in making glass, paper, soap, and food products
- 肉碱 ròujiǎn carnitinecarnitine, a substance used by the body to turn fat into energy
- 生物碱 shēngwùjiǎn alkaloidA nitrogenous organic compound found in plants and some animals that usually has a bitter taste and toxic or medicinal properties
- 麻黄碱 máhuángjiǎn ephedrinean alkaloid used in medicine, especially for the treatment of asthma and hay fever
- 烟碱 yānjiǎn nicotinenicotine; an alkaloid found in tobacco and some other plants; also known as [[尼古丁|尼古丁|ni2 gu3 ding1]]
- 盐碱 yánjiǎn saline-alkalinesaline and alkaline; refers to soil or earth with high salt and alkali content
- 茶碱 chájiǎn theophyllinean alkaloid found in tea leaves; used medically to treat asthma and other respiratory diseases by relaxing muscle spasms in the airways
- 盐碱地 yánjiǎndì saline-alkali soilsoil that contains a high concentration of water-soluble salts, making it difficult for crops to grow
- 酸碱度 suānjiǎndù pH level(chemistry) the degree of acidity or alkalinity in a solution; often referred to as the [[pH值|pH值|pi4 ai1 qu4 zhi2]] level
- 碱化 jiǎnhuà to alkalinizeto make basic or alkaline; to undergo alkalization
- 碱基对 jiǎnjīduì base paira pair of complementary bases in a DNA or RNA molecule
- 强碱 qiángjiǎn strong base(chemistry) alkali; a strong base that reacts strongly and is highly corrosive
- 碱度 jiǎndù alkalinitydegree of alkalinity
- 碱金属 jiǎnjīnshǔ alkali metalAny of the six chemical elements in Group 1 of the periodic table, including [[锂|鋰|li3]], [[钠|鈉|na4]], [[钾|鉀|jia3]], [[铷|銣|ru2]], [[铯|銫|se4]], and [[钫|鈁|fang1]]; they are highly reactive and form strong bases when their oxides dissolve in water
- 耐碱 nàijiǎn alkali-resistantStrongly resistant to corrosion by alkaline substances
- 咖啡碱 kāfēijiǎn caffeineAn alkaloid found in tea leaves, cocoa, and coffee with a bitter taste; used to stimulate the central nervous system or as a diuretic. Also called [[咖啡因|咖啡因|ka1 fei1 yin1]] or [[茶素|茶素|cha2 su4]].
- 碱地 jiǎndì alkaline landland with a high alkaline content that is unfavorable for plant growth
- 弱碱 ruòjiǎn weak base(chemistry) a chemical substance that does not fully dissociate into ions in water, producing a relatively low concentration of hydroxide ions; an alkali with a low pH value compared to strong bases
- 盐碱滩 yánjiǎntān salt marsha shoreline area or flat land with high salt and alkali content in the soil, making it difficult for crops to grow
- 碱土金属 jiǎntǔjīnshǔ alkaline earth metalAny of the six chemical elements in group 2 of the periodic table, including [[铍|鈹|pi2]], [[镁|鎂|mei3]], [[钙|鈣|gai4]], [[锶|鍶|si1]], [[钡|鋇|bei4]], and [[镭|鐳|lei2]]
- 盐碱土 yánjiǎntǔ saline-alkaline soilGeneral term for soil with high levels of salt or alkaline content; includes saline soil, alkaline soil, and various types of salinized or alkalized soils
- 泡花碱 pàohuājiǎn water glasssodium silicate or a solution made from it, commonly known as water glass
- 水碱 shuǐjiǎn limescaleMineral deposits from hard water that form a white crust or powder inside kettles or boilers; also called [[水垢|水垢|shui3 gou4]] or [[水锈|水鏽|shui3 xiu4]].
- 碱土 jiǎntǔ alkaline soilsoil that contains a high amount of alkaline substances or exchangeable sodium, resulting in a high pH level and poor conditions for plant growth
- 洗碱 xǐjiǎn desalinizationto wash out alkali or salt from the soil; to desalinate land
- 碱性土 jiǎnxìngtǔ alkaline soil
- 泛碱 fànjiǎn efflorescenceThe accumulation of white salt crystals on a surface, such as on soil due to capillary action or on building materials like cement and brick.
- 苛性碱 kēxìngjiǎn caustic alkaliA general term for alkali metal hydroxides, typically referring to sodium hydroxide or potassium hydroxide; highly corrosive to materials like skin, wool, and paper.
- 汗碱 hànjiǎn sweat stainWhite stains or residue left on clothing after sweat evaporates; also called [[汗斑|汗斑|han4 ban1]]
- 白碱滩区 báijiǎntānqū Baijiantan DistrictBaijiantan District of [[克拉玛依市|克拉瑪依市|ke4 la1 ma3 yi1 shi4]] in Xinjiang
- 洋碱 yángjiǎn soap(dialect) soap; also known as [[肥皂|肥皂|fei2 zao4]]
- 碱荒 jiǎnhuāng alkaline wastelandland that has been left uncultivated or become desolate due to high alkalinity
- 洗涤碱 xǐdíjiǎn washing sodasodium carbonate used for cleaning and as a water softener; soda ash
- 三尖杉酯碱 sānjiānshānzhǐjiǎn harringtonineharringtonine; a chemical compound derived from the plum-yew tree used in chemotherapy
- 乙酰胆碱 yǐxiāndǎnjiǎn acetylcholineacetylcholine (ACh); a chemical that functions in the brain and body of many types of animals as a neurotransmitter
- 仙人球毒碱 xiānrénqiúdújiǎn mescalinea hallucinogenic compound found in certain cacti
- 千碱基对 qiānjiǎnjīduì kilobase pairkilobase pair; a unit of measurement in molecular biology used to describe the length of DNA or RNA molecules
- 去氧麻黄碱 qùyǎngmáhuángjiǎn methamphetamine
- 古柯碱 gǔkējiǎn cocaineA bitter, addictive alkaloid extracted from the leaves of the coca plant, used as a local anesthetic or as a stimulant drug; also known as [[可卡因|可卡因|ke3 ka3 yin1]].
- 吐根碱 tǔgēnjiǎn emetineAn alkaloid derived from the root of the ipecacuanha plant; it is highly toxic and used as an expectorant or to treat amoebic dysentery.
- 嗜碱性球 shìjiǎnxìngqiú basophilbasophil granulocyte; a type of white blood cell that contains granules which stain with basic dyes
- 嗜碱性粒细胞 shìjiǎnxìnglìxìbāo basophil granulocytebasophil granulocytes; the rarest type of white blood cell in the body
- 核碱基 héjiǎnjī nucleobasea nitrogenous base found in the nucleotides of DNA or RNA; nucleobase
- 火碱 huǒjiǎn caustic sodasodium hydroxide; common name for a white solid used as a chemical raw material in soap and paper manufacturing
- 烟碱素 yānjiǎnsù niacin(Taiwan) niacin; vitamin B3
Sources
- Frequency data
- MTSU Chinese text computingSUBTLEX-CH