eka-boron
nounEtymology From eka- + boron: the name given by Dmitri Mendeleev to the then undiscovered element at the position of scandium in his periodic table.
1
Chemistry, Natural sciences, Physical sciences scandium
- In 1880, Nilson and Cleve discovered in a Scandinavian mineral a new element which had the properties of eka-boron. They called it Scandium.1902, John Charles Hessler, Albert Lincoln Smith, Essentials of Chemistry: