mathematician
//ˌmæθ.əˈmæt.ɪ.ʃən//
Noun
mathematicianSingular
mathematiciansPlural
1
A person who studies, teaches, or is an expert in mathematics.
She is a mathematician who specializes in number theory.

A person who studies, teaches, or is an expert in mathematics.
She is a mathematician who specializes in number theory.