Key: "S:" = Show Synset (semantic) relations, "W:" = Show Word (lexical) relations
Display options for sense: (gloss) "an example sentence"
Noun
S: (n) copper, Cu, atomic number 29 (a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor)
S: (n) metallic element, metal (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)
S: (n) heavy metal (a metal of relatively high density (specific gravity greater than about 5) or of high relative atomic weight (especially one that is poisonous like mercury or lead))
S: (n) base metal (a metal that is common and not considered precious) "lead, iron, copper, tin, and zinc are base metals"
S: (n) noble metal (any metal that is resistant to corrosion or oxidation)
S: (n) bismuth, Bi, atomic number 83 (a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals)
S: (n) cadmium, Cd, atomic number 48 (a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores)
S: (n) calcium, Ca, atomic number 20 (a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals)
S: (n) cerium, Ce, atomic number 58 (a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group)
S: (n) cesium, caesium, Cs, atomic number 55 (a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal)
S: (n) cobalt, Co, atomic number 27 (a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition)
S: (n) copper, Cu, atomic number 29 (a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor)
S: (n) curium, Cm, atomic number 96 (a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei)
S: (n) gallium, Ga, atomic number 31 (a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores)
S: (n) hafnium, Hf, atomic number 72 (a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons)
S: (n) holmium, Ho, atomic number 67 (a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds)
S: (n) iridium, Ir, atomic number 77 (a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium)
S: (n) iron, Fe, atomic number 26 (a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood)
S: (n) lanthanum, La, atomic number 57 (a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth)
S: (n) lead, Pb, atomic number 82 (a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey) "the children were playing with lead soldiers"
S: (n) lithium, Li, atomic number 3 (a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals)
S: (n) magnesium, Mg, atomic number 12 (a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine))
S: (n) manganese, Mn, atomic number 25 (a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals)
S: (n) molybdenum, Mo, atomic number 42 (a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel)
S: (n) neodymium, Nd, atomic number 60 (a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium)
S: (n) neptunium, Np, atomic number 93 (a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium)
S: (n) nickel, Ni, atomic number 28 (a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite)
S: (n) niobium, Nb, atomic number 41 (a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium)
S: (n) osmium, Os, atomic number 76 (a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known)
S: (n) palladium, Pd, atomic number 46 (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)
S: (n) polonium, Po, atomic number 84 (a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor)
S: (n) potassium, K, atomic number 19 (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)
S: (n) praseodymium, Pr, atomic number 59 (a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process)
S: (n) promethium, Pm, atomic number 61 (a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium)
S: (n) radium, Ra, atomic number 88 (an intensely radioactive metallic element that occurs in minute amounts in uranium ores)
S: (n) rhenium, Re, atomic number 75 (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)
S: (n) rhodium, Rh, atomic number 45 (a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum)
S: (n) rubidium, Rb, atomic number 37 (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)
S: (n) samarium, Sm, atomic number 62 (a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite)
S: (n) scandium, Sc, atomic number 21 (a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite)
S: (n) sodium, Na, atomic number 11 (a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt))
S: (n) strontium, Sr, atomic number 38 (a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite)
S: (n) tantalum, Ta, atomic number 73 (a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite)
S: (n) technetium, Tc, atomic number 43 (a crystalline metallic element not found in nature; occurs as one of the fission products of uranium)
S: (n) terbium, Tb, atomic number 65 (a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite)
S: (n) thallium, Tl, atomic number 81 (a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores)
S: (n) thorium, Th, atomic number 90 (a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands)
S: (n) thulium, Tm, atomic number 69 (a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime)
S: (n) tin, Sn, atomic number 50 (a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide)
S: (n) titanium, Ti, atomic number 22 (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)
S: (n) tungsten, wolfram, W, atomic number 74 (a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite)
S: (n) uranium, U, atomic number 92 (a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons)
S: (n) vanadium, V, atomic number 23 (a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite)
S: (n) ytterbium, Yb, atomic number 70 (a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime)
S: (n) yttrium, Y, atomic number 39 (a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys)
S: (n) zinc, Zn, atomic number 30 (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)
S: (n) zirconium, Zr, atomic number 40 (a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon)
S: (n) alkali metal, alkaline metal (any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium)) "the hydroxides of the alkali metals are strongly alkaline"
S: (n) alkaline earth, alkaline-earth metal (any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium))
S: (n) conductor (a substance that readily conducts e.g. electricity and heat)
S: (n) copper, Cu, atomic number 29 (a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor)
S: (n) silver, Ag, atomic number 47 (a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography)
S: (n) semiconductor, semiconducting material (a substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities)