epidemiology
Pronunciation:
/ˈɛp.ɪ.diːm.iː.ɒl.ə.dʒi//ˌɛp.ɪˌdi.miˈɒl.ə.dʒi/noun
Definitions
The branch of science dealing with the spread and control of diseases, viruses, concepts etc. throughout populations or systems.
The epidemiological body of knowledge about a particular thing.