rad — meaning in English Polish → English · translate English → Polish instead English meaning glad adj Pleased or happy about something. radium noun A rare, highly radioactive metallic chemical element (symbol Ra). Senses rad is used for these senses in English: glad Pleased; happy; gratified. radium The chemical element (symbol Ra) with an atomic number of 88. It is a soft, shiny and silvery radioactive alkaline earth metal. Related Polish words zadowolony szczęśliwy uradowany usatysfakcjonowany