| noble metal | A metal that cannot be oxidised by heat alone, nor readily dissolved by acid; e.g., gold, platinum. Synonym: noble element. (05 Mar 2000) |
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| d'Arcet's metal | An alloy of lead, bismuth, and tin; used in dentistry. (05 Mar 2000) |
| fusible metal | A metal with a low melting point. (05 Mar 2000) |
| light metal | A metal with a specific gravity of less than 4. (05 Mar 2000) |
| liquid metal | <radiobiology> Metal which has been heated past its melting point and can be used as a working fluid for pumping heat out from a powerplant. Liquid metal used as coolant in a system where significant magnetic fields exist, it behaves differently due to magnetohydrodynamic effects, these cause pressure which resists fluid circulation, suppression of turbulence, and altered flow patterns compared to non-magnetic liquid metal systems. (09 Oct 1997) |
| liquid-metal fast-breeder reactor | <physics> Fission breeder reactor concept using liquid-metal coolant and breeding additional fuel off fast neutrons. See: breeder reactor. (09 Oct 1997) |