Word:

Rubidium

Ru`bid´i`um
n.1.(Chem.) A rare metallic element of the alkali metal series, atomic number 37. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties. Symbol Rb. Atomic weight, 85.48.
Noun1.rubidium - a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
Synonyms: atomic number 37, Rb
atomic number 37, carnallite, lepidolite, metal, metallic element, pollucite, Rb
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Rubia cordifolia
Rubia tinctorum
Rubiaceae
Rubiaceous
rubiaceous plant
Rubiacin
Rubiales
Rubian
Rubianic
Rubican
Rubicelle
Rubicon
Rubicund
Rubicundity
Rubidic
Rubidine
-- Rubidium --
rubidium-strontium dating
Rubific
Rubification
Rubiform
Rubify
Rubiginose
Rubigo
Rubin
Rubin test
Rubinstein
Rubious
Rubiretin
Ruble
rubor
Rubric
Rubricate
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