Crossword clues for the word: RHENIUM The word RHENIUM has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for RHENIUM Showing 1 to 4 of 4 results Clue(s) "Re, to chemists" Atomic number 75 Element named after a German river Silvery-white metallic element; symbol Re