Rubidium

Pronunciation

• UK IPA: /ˌɹʊuˈbɪd.iː.ÊŒm/

Origin

A New Latin word derived by German chemist R. W. Bunsen in 1861, from Latin rubidus ("red") because its spectrum has two red lines.

Chambers Dictionary of Etymology, Robert K. Barnhart (ed.), Chambers, 1988

Full definition of rubidium

Noun

1. A metallic chemical element (symbol Rb) with an atomic number of 37.

Derived terms

Related terms

• rubidic, rubidian