onomastician on·o·mas·tics /ˌɒnəˈmæstɪks/ [on-uh-mas-tiks] -noun (used with a singular verb) the study of the origin, history, and use of proper names.
(taken from dictionary.com)
The have several names that they can be called by, including volcanist, volcanologist, and historically, vulcanologist.
a person that studies gems is called a gemologist.
The Person Who studies about mamals , he is called mamalogist....
A person who studies animals is called a zoologist.
A person who studies physics is called a physicist, a person who studies chemistry is called a chemist, and a person who studies biology is called a biologist.
A person who studies the mind and behavior is called a psychologist.
A person who studies or writes history is called a historian.
Alligators of reptiles, so one who studies them is called a herpetologist.
A person who studies optometry is called an optometry student or an optometry student.
A person who studies a lot is often called a "bookworm" or a "knowledge enthusiast."
a culturologist. Just kidding its called a phallololigist
A person who studies sound is called an acoustician.