Mots en English pour 'Composed of four ions'
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adj
- (inorganic chemistry) Composed of four elements.
- Of a mathematical expression containing e.g. x⁴.
- Of fourth rank or order.
- Relating to or in number base four.
- (organic chemistry) quaternary ammonium.
- consisting of or especially arranged in sets of four
- coming next after the third and just before the fifth in position or time or degree or magnitude
noun
noun
- the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion
- (inorganic chemistry) The univalent NH₄⁺ cation, derived by the protonation of ammonia
- (organic chemistry, especially in combination) Any similar cation formed by replacing one or more hydrogen atoms with alkyl or aryl radicals
verb
noun
- (chemistry, countable) A single atom of this element.
- (uncountable) The chemical element (symbol F) with an atomic number of 9. It is the lightest of the halogens, a pale yellow-green, highly reactive gas that attacks all metals.
- a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
noun
- (chemistry, countable) A single atom of this element.
- (chemistry, uncountable) A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.
- Abbreviation of silicon chip.
- (slang) A computer processor.
- (slang) Computing.
- a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
noun
- an inorganic compound containing the divalent ion -O-O-
- a viscous liquid with strong oxidizing properties; a powerful bleaching agent; also used (in aqueous solutions) as a mild disinfectant and (in strong concentrations) as an oxidant in rocket fuels
- (organic chemistry) Any compound containing the functional group R-O-O-R'.
- Hydrogen peroxide, especially when in an aqueous solution used as a bleach.
- (inorganic chemistry) A divalent radical or anion containing two oxygen atoms linked by a covalent bond; any substance containing this group yields hydrogen peroxide when treated with an acid.
verb
noun
- (countable) A single atom of this element.
- The chemical element (symbol Ar) with an atomic number of 18. The third most abundant gas in the Earth's atmosphere, it is a colourless, odourless, inert noble gas.
- a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
noun
- (countable) A single atom of this element.
- A toxic grey brittle nonmetallic chemical element (symbol As) with an atomic number of 33.
- Arsenic trioxide.
- a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
- a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and in various alloys; found in arsenopyrite and orpiment and realgar
adj
noun
- (countable) A single atom of this element.
- A toxic, green, gaseous chemical element (symbol Cl) with an atomic number of 17.
- (countable) A chlorine-based bleach or disinfectant.
- a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
noun
noun
- (countable) A single atom of this element.
- (uncountable) A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group.
- a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
noun
- (countable) A single atom of this element.
- (uncountable) The simplest alkali metal, the lightest solid element, and the third lightest chemical element (symbol Li) with an atomic number of 3 and atomic weight of 6.94. It is a soft, silvery metal.
- (countable) A lithium battery.
- (pharmacology, uncountable) Lithium carbonate or other preparations of lithium metal used as a mood stabiliser to treat manic depression and bipolar disorders.
- a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
noun
- (countable) A single atom of this element.
- (uncountable) A metallic chemical element (symbol Mn) with an atomic number of 25, not a free element in nature but often found in minerals in combination with iron, and useful in industrial alloy production.
- a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
noun
- (countable) A single atom of this element.
- A chemical element (symbol Nd) with an atomic number of 60: a hard, slightly malleable silvery rare earth metal that quickly tarnishes in air and moisture.
- a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
noun
- (countable) A single atom of this element.
- A chemical element (symbol Os) with atomic number 76: a hard, brittle, heavy, bluish-white transition metal found as a trace element in alloys, mostly in platinum ores.
- a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
noun
- (countable) A single atom of this element.
- A chemical element (symbol Pd) with an atomic number of 46: a rare, lustrous silvery-white metal.
- A safeguard.
- a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry
noun
- (countable) A single atom of this element.
- A soft, waxy, silvery reactive metal that is never found unbound in nature; an element with atomic number 19 and atomic weight of 39.0983.
- a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
noun
- (countable) A single atom of this element.
- A metallic chemical element (symbol Re) with an atomic number of 75: a heavy, silvery-gray transition metal.
- a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
noun
- (countable) A single atom of this element.
- (uncountable) The chemical element (symbol Rb) with an atomic number of 37. It is a soft, highly reactive alkali metal.
- a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
noun
- (countable) A single atom of this element.
- The metallic chemical element (symbol Sr) with an atomic number of 38. It is a soft, reactive, silvery alkaline earth metal.
- a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
noun
- (countable) A single atom of this element.
- Alternative form of tellurion.
- (uncountable) The chemical element with atomic number 52. Symbol: Te. A rare, brittle, mildly toxic, silver-white metalloid.
- a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold
noun
- (countable) A single atom of this element.
- A chemical element, atomic number 22; it is a strong, corrosion-resistant transition metal, used to make light alloys for aircraft etc.
- a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
noun
- (countable) A single atom of this element.
- A chemical element (symbol V) with atomic number 23; it is a transition metal, used in the production of special steels.
- a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite
noun
- (countable) A single atom of this element.
- A chemical element (symbol Zn) with an atomic number of 30, a blue-silvery metal that is slightly brittle at room temperature and tarnishes slightly in moist air.
- (Nigeria) A corrugated iron roof.
- a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende
verb
noun
- the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion
- (inorganic chemistry) The univalent NH₄⁺ cation, derived by the protonation of ammonia
- (organic chemistry, especially in combination) Any similar cation formed by replacing one or more hydrogen atoms with alkyl or aryl radicals
noun
- (chemistry, countable) A single atom of this element.
- (uncountable) The chemical element (symbol F) with an atomic number of 9. It is the lightest of the halogens, a pale yellow-green, highly reactive gas that attacks all metals.
- a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
noun
- (chemistry, countable) A single atom of this element.
- (chemistry, uncountable) A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.
- Abbreviation of silicon chip.
- (slang) A computer processor.
- (slang) Computing.
- a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
noun
- an inorganic compound containing the divalent ion -O-O-
- a viscous liquid with strong oxidizing properties; a powerful bleaching agent; also used (in aqueous solutions) as a mild disinfectant and (in strong concentrations) as an oxidant in rocket fuels
- (organic chemistry) Any compound containing the functional group R-O-O-R'.
- Hydrogen peroxide, especially when in an aqueous solution used as a bleach.
- (inorganic chemistry) A divalent radical or anion containing two oxygen atoms linked by a covalent bond; any substance containing this group yields hydrogen peroxide when treated with an acid.
verb
noun
- (countable) A single atom of this element.
- The chemical element (symbol Ar) with an atomic number of 18. The third most abundant gas in the Earth's atmosphere, it is a colourless, odourless, inert noble gas.
- a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
noun
- (countable) A single atom of this element.
- A toxic grey brittle nonmetallic chemical element (symbol As) with an atomic number of 33.
- Arsenic trioxide.
- a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
- a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and in various alloys; found in arsenopyrite and orpiment and realgar
adj
noun
- (countable) A single atom of this element.
- A toxic, green, gaseous chemical element (symbol Cl) with an atomic number of 17.
- (countable) A chlorine-based bleach or disinfectant.
- a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
noun
noun
- (countable) A single atom of this element.
- (uncountable) A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group.
- a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
noun
- (countable) A single atom of this element.
- (uncountable) The simplest alkali metal, the lightest solid element, and the third lightest chemical element (symbol Li) with an atomic number of 3 and atomic weight of 6.94. It is a soft, silvery metal.
- (countable) A lithium battery.
- (pharmacology, uncountable) Lithium carbonate or other preparations of lithium metal used as a mood stabiliser to treat manic depression and bipolar disorders.
- a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
noun
- (countable) A single atom of this element.
- (uncountable) A metallic chemical element (symbol Mn) with an atomic number of 25, not a free element in nature but often found in minerals in combination with iron, and useful in industrial alloy production.
- a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
noun
- (countable) A single atom of this element.
- A chemical element (symbol Nd) with an atomic number of 60: a hard, slightly malleable silvery rare earth metal that quickly tarnishes in air and moisture.
- a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
noun
- (countable) A single atom of this element.
- A chemical element (symbol Os) with atomic number 76: a hard, brittle, heavy, bluish-white transition metal found as a trace element in alloys, mostly in platinum ores.
- a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
noun
- (countable) A single atom of this element.
- A chemical element (symbol Pd) with an atomic number of 46: a rare, lustrous silvery-white metal.
- A safeguard.
- a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry
noun
- (countable) A single atom of this element.
- A soft, waxy, silvery reactive metal that is never found unbound in nature; an element with atomic number 19 and atomic weight of 39.0983.
- a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
noun
- (countable) A single atom of this element.
- A metallic chemical element (symbol Re) with an atomic number of 75: a heavy, silvery-gray transition metal.
- a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
noun
- (countable) A single atom of this element.
- (uncountable) The chemical element (symbol Rb) with an atomic number of 37. It is a soft, highly reactive alkali metal.
- a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
noun
- (countable) A single atom of this element.
- The metallic chemical element (symbol Sr) with an atomic number of 38. It is a soft, reactive, silvery alkaline earth metal.
- a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
noun
- (countable) A single atom of this element.
- Alternative form of tellurion.
- (uncountable) The chemical element with atomic number 52. Symbol: Te. A rare, brittle, mildly toxic, silver-white metalloid.
- a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold
noun
- (countable) A single atom of this element.
- A chemical element, atomic number 22; it is a strong, corrosion-resistant transition metal, used to make light alloys for aircraft etc.
- a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
noun
- (countable) A single atom of this element.
- A chemical element (symbol V) with atomic number 23; it is a transition metal, used in the production of special steels.
- a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite
noun
- (countable) A single atom of this element.
- A chemical element (symbol Zn) with an atomic number of 30, a blue-silvery metal that is slightly brittle at room temperature and tarnishes slightly in moist air.
- (Nigeria) A corrugated iron roof.
- a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende
verb
verb
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adj
- (inorganic chemistry) Composed of four elements.
- Of a mathematical expression containing e.g. x⁴.
- Of fourth rank or order.
- Relating to or in number base four.
- (organic chemistry) quaternary ammonium.
- consisting of or especially arranged in sets of four
- coming next after the third and just before the fifth in position or time or degree or magnitude