n. The branch of a science dealing with the spread and control of diseases, computer viruses, concepts etc. throughout populations or systems.
n. The epidemiological body of knowledge about a particular thing.
the GNU version of the Collaborative International Dictionary of English
n. That branch of medicine which studies the incidence and distribution of disease in a population, and uses such information to find the causes, modes of transmission, and methods for control of disease.
The Century Dictionary and Cyclopedia
n. The science of epidemics; the sum of human knowledge concerning epidemic diseases.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the branch of medical science dealing with the transmission and control of disease
Word Usage
"The CDC uses what they call epidemiology which is really questionnaires and they ask people, what did you eat, where did you eat it, so on and so forth."