1. plural of aetiology; the causes or origins of diseases or conditions
Usage: medical; British spelling
2. plural of aetiology; the study of causation or origination
Usage: formal; British spelling

Examples

• The researchers studied the aetiologies of various autoimmune disorders.
• Multiple aetiologies can contribute to the development of heart disease.
• The conference focused on the aetiologies of mental health conditions.
• Understanding different aetiologies helps doctors provide better treatment.
• The textbook covered the aetiologies of infectious diseases in detail.
• Scientists are investigating the aetiologies behind climate change.