Webster's Online Dictionary
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Definition: EKABOR

Part of Speech Definition
Noun 1. An alternative spelling for "Ekaboron": 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.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "Ekabor" was first used in popular English literature: sometime before 1914. (references)

Definition: EKABOR

Part of SpeechDefinition
Noun1. An alternative spelling for "Ekaboron": 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.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "EKABOR" was first used in popular English literature: sometime before 1914. (references)