Plural of aetiology; the plural form referring to multiple causes, origins, or studies of what causes diseases or problems.
From aetiology (the study of causes) + -s (plural marker). Each aetiology refers to a different cause or origin story.
When doctors discuss the aetiologies of a disease, they're essentially listing all the different possible causes—like how diabetes might have genetic aetiologies, dietary aetiologies, or stress-related aetiologies depending on the patient.
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