The Collaborative International Dictionary of English v.0.48:

Ekaluminium \Ek*al`u*min"i*um\, n. [Skr. [=e]ka one + E.
   aluminium.] (Chem.)
   The name given by Mendeleev to a hypothetical element, --
   later discovered and called gallium. See Gallium, and cf.
   Ekabor. Also see periodic table.
   [1913 Webster +PJC]