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Meaning of RB

 
WordNet Dictionary
 
 Definition: 
[n]  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
 

RB is a 2 letter word that starts with R.

 

 Synonyms: atomic number 37, rubidium
 
 See Also: carnallite, lepidolite, metal, metallic element, pollucite

 

 

 

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