coronium
English edit
Etymology edit
From corona + -ium, coined by a certain A. Gruenwald.
Noun edit
coronium (uncountable)
- (historical) A supposed chemical element, hypothesized in the 19th century in order to explain a green emission line seen during the total solar eclipse of 7 August 1869 (actually highly ionized iron).
Coordinate terms edit
Dutch edit
Etymology edit
Borrowed from English coronium, coined by a certain A. Gruenwald. Equivalent corona + -ium.
Pronunciation edit
Noun edit
coronium n (uncountable)
- (historical, astronomy, chemistry) coronium (obsolete chemical element, hypothesised to exist based on a green emission line)