etiology
noun/ˌiːtiˈɒlədʒi/
/ˌiːtiˈɑːlədʒi/
(North American English) (British English aetiology)
(plural etiologies)
(medical)- [uncountable, countable] the cause of a disease or medical condition
- [uncountable] the scientific study of the causes of disease
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etiology