共 41,499 条，第400页完整浏览。按义项组织词语；同义词集及概念关系不表示这些词在任意句子中都能替换。英文义项说明保留来源原文。
a fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another; "he added more coolant to the car's radiator"; "the atomic reactor used a gas coolant"; "lathe operators use an emulsion of oil and water as a coolant for the cutting tool"
义项编号 14822141-n同一义项的词语：铜基合金
any alloy whose principal component is copper
义项编号 14822563-n同一义项的词语：氧化铜
an oxide of copper
义项编号 14822762-n同一义项的词语：硫酸铜
a copper salt made by the action of sulfuric acid on copper oxide
义项编号 14822839-n同一义项的词语：珊瑚
the hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry
义项编号 14823036-nouter bark of the cork oak; used for stoppers for bottles etc.
义项编号 14823227-n同一义项的词语：软木组织
(botany) outer tissue of bark; a protective layer of dead cells
义项编号 14823547-n同一义项的词语：玉米葡萄糖
dextrose made by hydrolysis of cornstarch
义项编号 14823690-na substance having the tendency to cause corrosion (such a strong acids or alkali)
义项编号 14823788-nany of various forms of aluminum oxide occurring naturally as corundum
义项编号 14823944-n同一义项的词语：铝酸盐
a compound of alumina and a metallic oxide
义项编号 14824140-n同一义项的词语：氢氧化铝
white crystalline compound that occurs naturally as the mineral gibbsite
义项编号 14824238-n同一义项的词语：氧化铝
a substance made of fused alumina
义项编号 14824469-n同一义项的词语：棉籽饼
the solid matter remaining after oil has been pressed from cottonseeds
义项编号 14824556-na thermoplastic resin obtained by polymerization of indene and coumarone; used in coatings and paint and asphalt tile
义项编号 14824702-n同一义项的词语：茚
a colorless liquid hydrocarbon extracted from petroleum or coal tar and used in making synthetic resins
义项编号 14824906-n同一义项的词语：覆盖材料
a material used by builders to cover surfaces
义项编号 14825062-nan amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates both in the free form and as phosphocreatine; supplies energy for muscle contraction
义项编号 14825243-n同一义项的词语：煤焦杂酚油
a dark oily liquid obtained by distillation of coal tar; used as a preservative for wood
义项编号 14825631-n同一义项的词语：木焦杂酚油
a colorless or yellowish oily liquid obtained by distillation of wood tar; used as an antiseptic
义项编号 14825812-n同一义项的词语：甲酚
any of three poisonous colorless isomeric phenols; derived from coal or wood tar; used as a disinfectant
义项编号 14825982-n同一义项的词语：绉纸
paper with a crinkled texture; usually colored and used for decorations
义项编号 14826173-na liquid that boils at below -160 C and is used as a refrigerant
义项编号 14826328-na weak soluble dibasic acid (the parent acid of cyanamide salts)
义项编号 14826482-n同一义项的词语：氰酸
a colorless poisonous volatile liquid acid that hydrolyzes readily to ammonia and carbon dioxide
义项编号 14826613-n同一义项的词语：氰化物
an extremely poisonous salt of hydrocyanic acid
义项编号 14826767-n同一义项的词语：氰化钠
a white poisonous salt (NaCN) used in electroplating
义项编号 14826904-n同一义项的词语：氰
a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
义项编号 14827017-n同一义项的词语：氰基
the monovalent group -CN in a chemical compound
义项编号 14827191-n同一义项的词语：腈
any of a class of organic compounds containing the cyano radical -CN
义项编号 14827346-n同一义项的词语：羟腈
any organic compound in which the cyano radical -CN and the hydroxyl radical -OH are attached to the same carbon atom
义项编号 14827505-na trimer of cyanic acid
义项编号 14827680-n同一义项的词语：环己醇
a colorless oily alcohol that smells like camphor
义项编号 14827763-n同一义项的词语：对异丙基甲苯
any of three isotopes of a colorless aromatic liquid hydrocarbon occurring in the volatile oil of cumin and thyme and used in the manufacture of synthetic resins
义项编号 14827979-n同一义项的词语：细胞因子
any of various protein molecules secreted by cells of the immune system that serve to regulate the immune system
义项编号 14828193-n同一义项的词语：溶细胞素
a substance that partly or completely destroys animal cells
义项编号 14828396-n同一义项的词语：胞嘧啶
a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
义项编号 14828511-n同一义项的词语：涂料
material used to daub walls
义项编号 14828683-n同一义项的词语：羧化酶
any of the enzymes that hydrolize the carboxyl group
义项编号 14828815-na chemical that is sprayed on plants and causes their leaves to fall off
义项编号 14828927-n同一义项的词语：翠榴石
a green andradite used as a gemstone
义项编号 14829172-n同一义项的词语：钙铁榴石
a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone
义项编号 14829264-n同一义项的词语：红糖的一种
a light brown raw cane sugar from Guyana
义项编号 14829470-n同一义项的词语：脱氧腺苷酸
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
义项编号 14829565-n同一义项的词语：脱氧胞苷酸
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
义项编号 14829765-n同一义项的词语：脱氧鸟苷酸
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
义项编号 14829964-n同一义项的词语：脱氧胸苷酸
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
义项编号 14830164-n(biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information; "DNA is the king of molecules"
义项编号 14830364-nsequence of a gene's DNA that transcribes into protein structures; "exons are interspersed with introns"
义项编号 14830992-nsequence of a eukaryotic gene's DNA that is not translated into a protein
义项编号 14831178-n同一义项的词语：垃圾DNA
stretches of DNA that do not code for genes; "most of the genome consists of junk DNA"
义项编号 14831338-n同一义项的词语：重组DNA
genetically engineered DNA made by recombining fragments of DNA from different organisms
义项编号 14831479-n同一义项的词语：粘性末端
an end of DNA in which one strand of the double helix extends a few units beyond the other
义项编号 14831665-n同一义项的词语：转位子
a segment of DNA that can become integrated at many different sites along a chromosome (especially a segment of bacterial DNA that can be translocated as a whole)
义项编号 14831812-n同一义项的词语：核糖核酸酶
a transferase that catalyzes the hydrolysis of ribonucleic acid
义项编号 14832046-n同一义项的词语：核糖核酸
(biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell; "ribonucleic acid is the genetic material of some viruses"
义项编号 14832193-nthe template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell
义项编号 14832770-n同一义项的词语：核RNA
ribonucleic acid found in the nucleolus of the cell
义项编号 14833027-nRNA molecules present in the cell (in at least 20 varieties, each variety capable of combining with a specific amino acid) that attach the correct amino acid to the protein chain that is being synthesized at the ribosome of the cell (according to directions coded in the mRNA)
义项编号 14833143-n同一义项的词语：脱氧核糖
a sugar that is a constituent of nucleic acids
义项编号 14833514-n同一义项的词语：镶牙用金合金
an alloy of gold used in dentistry
义项编号 14833618-na chemical (usually a sulfide) used to remove hair or wool or bristles from hides
义项编号 14833729-n同一义项的词语：荒漠土
a type of soil that develops in arid climates
义项编号 14834013-nwater that has condensed on a cool surface overnight from water vapor in the air; "in the morning the grass was wet with dew"
义项编号 14834132-nvery hard native crystalline carbon valued as a gem
义项编号 14834563-n同一义项的词语：一碘酪氨酸
tyrosine with one iodine atom added
义项编号 14834807-n同一义项的词语：二碘酪氨酸
tyrosine with two iodine atoms added
义项编号 14834906-n同一义项的词语：碘化酪氨酸
tyrosine with iodine added
义项编号 14835004-n同一义项的词语：碘化甲状腺氨酸
thyronine with iodine added
义项编号 14835125-n同一义项的词语：三碘甲腺原氨酸
thyronine with three iodine atoms added
义项编号 14835230-na diluting agent
义项编号 14835333-n同一义项的词语：稀释溶液
a diluted solution
义项编号 14835478-n同一义项的词语：二聚物
a compound whose molecules are composed of two identical monomers
义项编号 14835569-n同一义项的词语：二甲基乙二肟
a compound used in analysis as a precipitant for palladium or nickel
义项编号 14835686-n同一义项的词语：二醇
any of a class of alcohols having 2 hydroxyl groups in each molecule
义项编号 14835980-n同一义项的词语：二氧化物
an oxide containing two atoms of oxygen in the molecule
义项编号 14836127-n同一义项的词语：二氧杂芑
any of several toxic or carcinogenic hydrocarbons that occur as impurities in herbicides
义项编号 14836308-nan enzyme that catalyzes the hydrolysis of disaccharides into monosaccharides
义项编号 14836468-nany of a variety of carbohydrates that yield two monosaccharide molecules on complete hydrolysis
义项编号 14836642-nwater in which dishes and cooking utensils are washed
义项编号 14836851-na purified liquid produced by condensation from a vapor during distilling; the product of distilling
义项编号 14836960-n同一义项的词语：蒸馏水
water that has been purified by distillation
义项编号 14837258-ngases ejected from an engine as waste products
义项编号 14837364-nwood that is floating or that has been washed ashore
义项编号 14837678-ncarbon steel used for rock drills and dowels
义项编号 14837786-n同一义项的词语：二十二碳六烯酸
an omega-3 fatty acid with 22 carbon atoms; found in fish (especially tuna and bluefish)
义项编号 14837900-na kind of sedimentary rock resembling marble or limestone but rich in magnesium carbonate
义项编号 14838055-n同一义项的词语：多巴胺
a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension
义项编号 14838217-nthe residue of partially burnt tobacco left caked in the bowl of a pipe after smoking
义项编号 14838539-n同一义项的词语：血竭
a dark red resinous substance derived from various trees and used in photoengraving
义项编号 14838677-n同一义项的词语：绘图纸
paper that is specially prepared for use in drafting
义项编号 14838821-na mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
义项编号 14838951-n同一义项的词语：皮革用防水油
tallow mixed with oil; used to make leather soft and waterproof
义项编号 14839206-n同一义项的词语：硬铝
an aluminum-based alloy
义项编号 14839322-n同一义项的词语：微粒物质
a small discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions (usually considered to be an atmospheric pollutant)
义项编号 14839439-n同一义项的词语：粉笔灰
dust resulting from writing with a piece of chalk; "chalk dust covered the teacher's hands"
义项编号 14839698-nfine powdery material such as dry earth or pollen that can be blown about in the air; "the furniture was covered with dust"
义项编号 14839846-nfree microscopic particles of solid material; "astronomers say that the empty space between planets actually contains measurable amounts of dust"
义项编号 14840092-n同一义项的词语：反油酸
a monounsaturated fatty acid that has the same structure as oleic acid except that it is a trans fatty acid; the major trans fatty acid in margarine and fried foods
义项编号 14840342-nany of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed)
义项编号 14840583-n