Letters that make Rb
b, r are letters that make 'Rb'
Words within Rb
are words within 'Rb'
orb, RBC, urb, rbi, arb are words created by adding a letter to 'Rb'
1 possible definitions for 'Rb'
Under this definition, rb is a noun and has the following properties:
rubidium, atomic number 37 have the same meaning as 'Rb'
'Rb' can be a type of metallic element, metal.
'Rb' can be a substance of carnallite, lepidolite, pollucite.