RB

n. metallic chemical element (Chemistry)

RB or Rb may stand for:Rafael Batista. "EL Presidente", Class of 2010 (PPCHS)! Goes out with Amanda. R4L Co-Captain.the chemical element Rubidium.The  Nissan RB enginethe IATA code for Syrian Arab Airlines.the Retinoblastoma protein, found mutated in many cancers, including retinoblastoma cancer.RB, the name used for a series of buses manufactured by Hyundai Motor Company.an abbreviation for right back, a defensive position in football (soccer).an abbreviation for running back, an offensive position in football (American).Radio Bremen, a German broadcasting station in Bremen.re-entry body (US Navy term for re-entry vehicle, rv)Rehoboth Beach, DelawareRoad bikeThe Ruby programming language's typical filename extension, .rb.rb is also the extension associated with Rocket Ebook files.Rolls-Barnoldswick, one of the design and production sites for Rolls-Royce jet enginesRafael Benitez Liverpool managerRancho Bernardo, a community in northern San Diego
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Rb rubidium. Rb The symbol for the element rubidium. Rb chemical symbol, rubidium. [more]Rb - Community and Resources

Noun
1. 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
(synonym) rubidium, atomic number 37
(hypernym) metallic element, metal
(substance-holonym) carnallite

Rb, rubidium, metallic chemical element (Chemistry)