plural eti·ol·o·gies

Definition of ETIOLOGY

: the cause or causes of a disease or abnormal condition <some types of cancer have a viral etiology> <a multiple etiology in which biological, psychological, and sociocultural factors all play a role—M. E. Jackson et al>
: a branch of medical science dealing with the causes and origin of diseases

Variants of ETIOLOGY

eti·ol·o·gy or chiefly British ae·ti·ol·o·gy \ˌēt-ē-ˈäl-ə-jē\

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