from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A silvery-white metallic element found in various rare minerals and separated as a byproduct in the processing of certain uranium ores. 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 1,540°C; boiling point 2,850°C; specific gravity 2.99; valence 3. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A metallic chemical element, atomic number 21, obtained from some uranium ores; it is a transition element.
from the GNU version of the Collaborative International Dictionary of English
- n. A rare metallic element of the boron group, whose existence was predicted under the provisional name ekaboron by means of the periodic law, and subsequently discovered by spectrum analysis in certain rare Scandinavian minerals (euxenite and gadolinite). It has not yet been isolated. Symbol Sc. Atomic weight 44.
from The Century Dictionary and Cyclopedia
- n. Chemical symbol, Sc; atomic weight, 44. An elementary body discovered by Nilson in 1879, by the help of the spectroscope, in the Scandinavian mineral euxenite.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
From Latin Scandia, Scandinavia.(American Heritage® Dictionary of the English Language, Fourth Edition)
Scandia + -ium (Wiktionary)