Etiology: Meaning (information, definition, explanation, facts)

Etiology (alternately "aetiology") is the study of causation. In medicine the term specifically means the occurrences, reasons, and variables of diseases or pathologies. The term is also used in philosophy, physics and biology in reference to the causes of various phenomena. Apart from its medical definition, it is also a study of why things occur, or even the reasons behind the way that things act.