TRANSMUTE

[verb] [usually + adverb or preposition] [formal] - to change (something) completely, esp. into something different and betterA shaft of sunlight had suddenly transmuted the room into a bright and welcoming place. [T](figurative) I still can't believe that the obnoxious youth that I knew actually transmuted into a nice man. [I](specialized) Plutonium transmutes into/to uranium when it is processed in a nuclear reactor. [I]A few centuries ago alchemists thought they could transmute lead into gold. [T]