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chemical    音标拼音: [k'ɛməkəl] [k'ɛmɪkəl]
a. 化学的
n. 化学制品,化学药品

化学的化学制品,化学药品

chemical
化学

chemical
adj 1: relating to or used in chemistry; "chemical engineer";
"chemical balance" [synonym: {chemical}, {chemic}]
2: of or made from or using substances produced by or used in
reactions involving atomic or molecular changes; "chemical
fertilizer"
n 1: material produced by or used in a reaction involving
changes in atoms or molecules [synonym: {chemical}, {chemical
substance}]

Chemical \Chem"ic*al\, n.
A substance used for producing a chemical effect; a reagent.
[1913 Webster]


Chemical \Chem"ic*al\, a.
Pertaining to chemistry; characterized or produced by the
forces and operations of chemistry; employed in the processes
of chemistry; as, chemical changes; chemical combinations.
[1913 Webster]

{Chemical attraction} or {Chemical affinity}. See under
{Attraction}.
[1913 Webster]

152 Moby Thesaurus words for "chemical":
Chile saltpeter, absolute alcohol, acetate, acetone, acid, acidity,
agent, alcohol, aldehyde, alkali, alkalinity, alloisomer, amine,
ammonia, amyl alcohol, anhydride, anion, antacid, arsenate,
arsenite, atom, base, basic, basic anhydride, benzoate,
bicarbonate, bicarbonate of soda, bichloride of mercury,
biochemical, bisulfate, borate, borax, bromide, calcium carbonate,
calcium hydroxide, carbide, carbohydrate, carbon dioxide,
carbon monoxide, carbonate, cation, chemical element, chemicals,
chemicobiological, chemicoengineering, chemicomineralogical,
chemicophysical, chemurgic, chlorate, chlorite, chromate,
chromoisomer, citrate, compound, copolymer, copolymeric,
copolymerous, copperas, cyanide, dehydrated alcohol, dichromate,
dimer, dimeric, dimerous, dioxide, disulfide, electrochemical,
element, elemental, elementary, ester, ethanol, ether, ethyl,
ethyl alcohol, fluoride, formaldehyde, fulminate, halide, halogen,
heavy chemicals, heteromerous, high polymer, homopolymer, hydracid,
hydrate, hydride, hydrocarbon, hydroxide, hypochlorite,
inorganic chemical, inorganic chemistry, iodide, ion, isomer,
isomerous, isopropyl alcohol, ketone, lactate, macrochemical,
macromolecule, metamer, metameric, methane, methanol, methyl,
methyl alcohol, molecule, monomer, monomerous, monoxide,
neutralizer, niter, nitrate, nitride, nitrite, nonacid,
organic chemical, oxalate, oxide, oxyacid, permanganate, peroxide,
petrochemical, phosphate, phosphide, photochemical,
physicochemical, phytochemical, polymer, polymeric, potash,
potassium nitrate, pseudoisomer, radical, radiochemical, reagent,
sal ammoniac, salt, saltpeter, silicate, sodium bicarbonate,
sodium bromide, sodium chloride, sodium hypochlorite, sulfacid,
sulfate, sulfide, sulfite, tartrate, thermochemical, trimer

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  • What Is a Chemical? Definition and Examples - Science Notes and Projects
    A chemical is a substance with a specific composition It is an element, an alloy, or a compound made up of two or more elements combined in a fixed ratio For instance, water (H 2 O) is a chemical because it consists of hydrogen and oxygen combined in a 2:1 ratio
  • Chemical substance - Wikipedia
    Chemical substances can exist in several different physical states or phases (e g solids, liquids, gases, or plasma) without changing their chemical composition Substances transition between these phases of matter in response to changes in temperature or pressure
  • PubChem
    Search and explore chemical information in the world's largest free chemistry database Search chemicals by name, molecular formula, structure, and other identifiers Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more
  • What Is a Chemical and What Isnt a Chemical? - ThoughtCo
    A chemical is any substance that is made of matter, like solids, liquids, or gases Light, heat, and sound are not chemicals since they are not made of matter Chemicals can be both natural, like oxygen, or artificial, like stainless steel
  • CHEMICAL | English meaning - Cambridge Dictionary
    CHEMICAL definition: 1 any basic substance that is used in or produced by a reaction involving changes to atoms or… Learn more
  • CHEMICAL Definition Meaning - Merriam-Webster
    : a substance (as an element or compound) obtained from a chemical process or used to get a chemical result
  • Chemistry | Definition, Topics, Types, History, Facts | Britannica
    chemistry, the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes
  • What is a Chemical - NRC
    A chemical is any substance that has a defined composition In other words, a chemical is always made up of the same "stuff " Some chemicals occur in nature, such as water
  • Chemical - definition of chemical by The Free Dictionary
    chemical - material produced by or used in a reaction involving changes in atoms or molecules
  • Chemical Portal - Chemistry Online Education
    Chemical portal: a place for chemistry enthusiasts and professionals alike Chemistry tools, periodic table, unit converters and more





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