aetiologist
/ˌitiˈɑlədʒɪst/
noun
- A person who studies the causes or origins of things, especially diseases or medical conditions.
- The aetiologist spent years researching the causes of the rare genetic disorder.
- As an aetiologist, she focused on how environmental factors trigger asthma.
- The hospital hired an aetiologist to investigate the outbreak of food poisoning.
Synonyms