English Reference

Word

epidemiology

Phoneticsepi·demi·ol·o·gy

US/ˌɛpəˌdɛmiˈɑɫədʒi/

UK/ˌɛpɪdˌɛmɪˈɒlədʒi/

Definition

n. the study of how diseases spread and how to control them in large groups of people.

n. the branch of medicine dealing with the incidence, distribution, and possible control of diseases and other factors relating to health.

Examples

“She decided to study epidemiology to help prevent future pandemics.”

“Advances in epidemiology allow health officials to track the source of food poisoning outbreaks within hours.”

“Modern epidemiology relies heavily on statistical modeling to predict how a virus might mutate as it moves through a population with varying levels of immunity.”

Examples

simple

“She decided to study epidemiology to help prevent future pandemics.”

contextual

“Advances in epidemiology allow health officials to track the source of food poisoning outbreaks within hours.”

complex

“Modern epidemiology relies heavily on statistical modeling to predict how a virus might mutate as it moves through a population with varying levels of immunity.”

Usage

Often used in academic or medical contexts; frequently paired with 'field of' or 'study of'.

Real-World Examples

“The virus is now present in seven provinces “covering a very vast geographic area”, said Dr Olivier le Polain, Unit Head for Epidemiology and Analytics for Response at WHO .”
UN News · 15 Sept 2026
“The cases were also thoroughly investigated by the state’s epidemiology team, and both individuals tested positive for measles, she added.”
The Guardian · 28 Aug 2026

Etymology

From Late Latin epidemia + -logy. See epidemic for more.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

epidemiologicalAdjectiveepidemiologyNoun

This entry

Level
C1 · Advanced
Frequency
Frequent
Updated

Scan code

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English Reference