Crossword clues for the word: QUANTUMTHEORY The word QUANTUMTHEORY has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for QUANTUMTHEORY Showing 1 to 4 of 4 results Clue(s) Brainchild of physicist Max Planck Noted Max Planck contribution to physics Planck's brainchild Planck's Nobel prize-winning formulation