Definition of Rb

  • (noun) 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 of Rb


Antonyms of Rb


No Antonyms Found.

Homophones of Rb





Common English words

A list of the most frequently used words in the English languge.

Longest English Words

Longest words in the Oxford Dictionary.