A scientist is an EXPERT in a particular field of science, such as physics, biology, or chemistry. The term 'scientist' can be used to refer to a person who has studied and is knowledgeable about a particular field of science. Common synonyms for the term 'scientist' include 'EXPERT' (6 letters), 'BOFFIN' (6 letters), 'PHYSICIST' (9 letters), 'Pasteur' (7 letters), and 'BOHR' (4 letters). Louis Pasteur was a French chemist and microbiologist who made significant contributions to the fields of chemistry, medicine, and biology. Niels BOHR was a Danish PHYSICIST who made significant contributions to the understanding of atomic structure and quantum mechanics.