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n. Symbol Sc
A soft, silvery-white metallic element that is found in various minerals, often with other rare-earth elements, or is separated as a byproduct in the processing of certain uranium ores. It is used in materials for high-efficiency lighting, and an artificially produced radioactive isotope is used as a tracer in studies of oil wells and pipelines. Atomic number 21; atomic weight 44.956; melting point 1,541°C; boiling point 2,836°C; specific gravity 2.989 (25°C); valence 3. See Periodic Table.
[From Latin Scandia, Scandinavia.]
scan′dic (-dĭk) adj.
(Elements & Compounds) a rare light silvery-white metallic element occurring in minute quantities in numerous minerals. Symbol: Sc; atomic no: 21; atomic wt: 44.955910; valency: 3; relative density: 2.989; melting pt: 1541°C; boiling pt: 2836°C
[C19: from New Latin, from Latin Scandia Scandinavia, where it was discovered]
scan•di•um(ˈskæn di əm)
a gray, trivalent metallic element occurring in certain rare minerals. Symbol: Sc; at. wt.: 44.956; at. no.: 21; sp. gr.: 3.0.
[< New Latin Scandia Scandinavia, where it is found]
Symbol Sc A soft, silvery, very lightweight metallic element that is found in various rare minerals and is a byproduct in the processing of certain uranium ores. It has a high melting point and is used to make high-intensity lights. Atomic number 21. See Periodic Table.
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|Noun||1.||scandium - a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite|
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
thortveitite - a mineral consisting of scandium yttrium silicate; a source of scandium