Synonyms
1. 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
- metallic element
- pollucite
- rubidium
- carnallite
- lepidolite
- metal
Featured Games
Words that Rhyme with Rb
- barbee