Transmutation/ˌtrænzmjuːˈteɪʃn/ Definition 1 of 3Pro Tip 1/3Physical changes Used to describe a transformation of matter, commonly found in science contexts. The transmutation of caterpillars into butterflies is fascinating. Pro Tip 2/3Non-literal uses Can express significant personal or societal changes metaphorically. The protagonist underwent a transmutation after the journey. Pro Tip 3/3Figurative speech Often used figuratively in literature to depict a deep or radical change. His character's transmutation was the climax of the story.