oesophagus UK /iːˈsɒfəɡəs/US /ɪˈsɑfəɡəs/ noun1 •The tube that carries food from the pharynx to the stomach.Graham, who lived in Somersham, Cambridgeshire, donated his oesophagus to the MRC cancer unit at Cambridge University, for research. — 2013 formsoesophagi · oesophaguses