A New Latin word derived by German chemist R. W. Bunsen in 1861, from Latin rūbidus (“red”) because its spectrum has two red lines.[1]
rubidium (usually uncountable, plural rubidiums)
- The chemical element (symbol Rb) with an atomic number of 37. It is a soft, highly reactive alkali metal.
- (countable) A single atom of this element.
Rubidium sample
element with atomic number 37
- ^ Chambers Dictionary of Etymology, Robert K. Barnhart (ed.), Chambers, 1988
rubidium (uncountable)
- rubidium
- IPA(key): [ˈrubiːdɪjum]
- Hyphenation: ru‧bi‧dium
rubidium n
- rubidium
Declension of rubidium (semisoft neuter foreign)
rubidium
- rubidium
Borrowed from German Rubidium.
- IPA(key): /ˌryˈbi.di.ʏm/
- Hyphenation: ru‧bi‧di‧um
rubidium n (uncountable)
- rubidium (chemical element) [from 1862]
Internationalism (see English rubidium).
- IPA(key): /ˈrubidium/, [ˈrubiˌdium]
- Rhymes: -ium
- Syllabification(key): ru‧bi‧di‧um
rubidium
- rubidium
rubidium m (uncountable)
- rubidium
rūbidium n (genitive rūbidiī); second declension
- rubidium
Second-declension noun (neuter).
rubidium n
- (uncountable) rubidium
- A part of rubidium
From English rubidium, from New Latin rubidium, from Latin rūbidus.
rubidium
- rubidium (element with atomic number 37)
rubidium n (uncountable)
- rubidium