noun
mathematician
math-uh-muh-TISH-un/ˌmæθəməˈtɪʃn/
A person who studies or works in mathematics.
The mathematician develops a proof using an equation and a geometric diagram.

Etymology
Greek mathēmatikos could refer broadly to learning as well as specifically to mathematics. With the person-forming ending, the word identifies someone learned or skilled in that particular field.
In context
Hilbert was a living legend a hugely influential mathematician who had worked in nearly every area of mathematics
More examples
- She works as a mathematician for an engineering company.
- Mathematicians study patterns in numbers, shapes, and other structures.
- The team asks a mathematician to check its calculations.
Forms
mathematician · mathematicians
mathematics noun — The study of numbers, quantities, shapes, and patterns.
mathematical adjective — Relating to mathematics or its methods.
Similar words
- statistician
- Specializes in collecting and analyzing data rather than mathematics generally.