English dictionary
rb meaning and definition
Definition and meaning of rb at MeaningMonkey.org. rb meaning and definition in the English Dictionary.RB noun
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: atomic number 37, rubidium
Source: Princeton University Wordnet