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
Synonym.com