Synset:Rb atomic number 37 rubidium
Substance Holonyms:carnallite lepidolite pollucite
Hypernyms:metal metallic element
Inherited Hypernyms:rubidiummetallic elementchemical elementsubstancematterphysical entityentity
Inherited Hypernyms:rubidiummetallic elementchemical elementsubstancepartrelationabstractionentity