From Wiktionary, the free dictionary
From eka- + boron: the name given by Dmitri Mendeleev to the then undiscovered element at the position of scandium in his periodic table.
eka-boron (uncountable)
- (chemistry) scandium
1902, John Charles Hessler, Albert Lincoln Smith, Essentials of Chemistry:In 1880, Nilson and Cleve discovered in a Scandinavian mineral a new element which had the properties of eka-boron. They called it Scandium.
