Bible Dictionaries
Ekaboron

Webster's Dictionary

(n.) 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.

Bibliography Information
Webster, Noah. Entry for 'Ekaboron'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​e/ekaboron.html. 1828.