esophagus (US) noun
or British oesophagus /ɪˈsɑːfəgəs/ plural esophagi /-əˌgaɪ/ /ɪˈsɑːfəˌgaɪ/ or British oesophagus /ɪˈsɑːfəgəs/ plural esophagi /-əˌgaɪ/ /ɪˈsɑːfəˌgaɪ/ Learner's definition of ESOPHAGUS
[count] medical
: the tube that leads from the mouth through the throat to the stomach食道;食管 — see picture at human