American and British English spelling differences
…in British English are written only with an e. Examples are (with the non-American letter in bold): anaemia, anaesthesia, caecum, coeliac, diarrhoea, faeces, foetal, gynaecology, haemoglobin, haemophilia, leukaemia, oesophagus, oestrogen, orthopaedic, paediatric. The chemical haem (named as a shortening of…