(n) 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, Syn. atomic number 20, Ca
(n) 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, Syn. atomic number 29, Cu
(n) a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas), Syn. atomic number 2, He
(n) 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, Syn. Fe, atomic number 26
(n) a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals, Syn. Mn, atomic number 25
(n) a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite, Syn. atomic number 28, Ni
(n) a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite, Syn. atomic number 21, Sc
(n) 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, Syn. atomic number 22, Ti
(n) a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite, Syn. V, atomic number 23