Alchemist (noun)

1. A person in ancient times who studied alchemy and tried to turn base metals into gold.
2. A person who studies or practices alchemy, especially one who tries to transform substances in order to discover their hidden properties.
3. A person who is skilled in making changes or improvements, especially in a chemical process.

Origin:

Late middle english: via old french from latin alchimista, from greek khemistēs, from khemeia (see chemistry).

Examples:

1. The alchemist was known for his experiments with transforming base metals into gold.
2. The alchemist was regarded as a wizard for his mysterious and elusive experiments.
3. The alchemist was a sought-after consultant for his knowledge and expertise in chemical processes.
4. The alchemist was a pioneer in his field, constantly pushing the boundaries of what was known.
5. The alchemist was a master of his craft, with a deep understanding of the properties of different substances.