According to a new report, Kate Middleton is pregnant with her and Prince William 's third child just four months after welcoming their daughter. Kate Middleton with Princess Charlotte in May.(Photo Credit: Getty Images).ccording to a new report, Kate Middleton is pregnant with her and Prince William 's third child just four months after welcoming their daughter. Kate Middleton with Princess Charlotte in May. (Photo Credit: Getty Images).
For other uses, see etiology. Etiology (/iËtiËÉlÉdÊi/ ; alternatively aetiology) is the study of causation, or origination. The word is derived from the Greek Î±á¼°ÏÎ¹Î¿Î»Î¿Î³Î¯Î±, aitiologia, giving a reason for (Î±á¼°ÏÎ¯Î±, aitia, cause; and -Î»Î¿Î³Î¯Î±, -logia).
A: According to The Free Dictionary, etiology, also spelled aetiology, is the study of exploration of the cause or factors contributing to something. In pathology, it specifically denotes the investigation into the cause or origins of a disease.