Scandium \Scan"di*um\, n. [NL. So called because found in
   Scandinavian minerals.] (Chem.)
   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.
   [1913 Webster]

Ekabor \Ek"a*bor`\ ([e^]k"[.a]*b[=o]r`), Ekaboron \Ek"a*bo"ron\
   (-b[=o]"r[o^]n), n. [G., fr. Skr. [=e]ka one + G. bor, boron,
   E. boron.] (Chem.)
   The name given by Mendelejeff in accordance with the periodic
   law, and by prediction, to a hypothetical element then
   unknown, but since discovered and named scandium; -- so
   called because it was a missing analogue of the boron group.
   See Scandium.
   [1913 Webster]