Epidemiology 601 Words You Need to Know
/ˈepɪˌdi:mɪˈɒlədʒɪ/ (noun)
Definition
a branch of medicine concerned with the origin and spread of contagious or infectious diseases caused by bacteria or viruses
Example
By definition, epidemiology is the study (scientific, systematic, and data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (neighborhood, school, city, state, country, global).
Source: https://www.cdc.gov/
Parts of speech
Noun: epidemiologist
Adjective: epidemiologic
Adjective: epidemiological
Adverb: epidemiologically