Source : Webster's Revised Unabridged Dictionary (1913)

Ekasilicon \Ek`a*sil"i*con\, n. [Skr. [=e]ka one + E. silicon.]
   (Chem.)
   The name of a hypothetical element predicted and afterwards
   discovered and named {germanium}; -- so called because it was
   a missing analogue of the silicon group. See {Germanium}, and
   cf. {Ekabor}.