A person who practices alchemy, a medieval chemical science and speculative philosophy aiming to achieve the transmutation of base metals into gold, the discovery of a universal cure for disease, and the discovery of a means of indefinitely prolonging life.

The alchemist spent years in his laboratory, hoping to turn lead into gold.

A person who transforms or creates something through a seemingly magical process.

The chef was considered an alchemist in the kitchen, turning simple ingredients into exquisite dishes.