esophagoscopy

noun

esoph·​a·​gos·​co·​py

variants or chiefly British oesophagoscopy

i-ˌsäf-ə-ˈgäs-kə-pē 

plural esophagoscopies

: examination of the esophagus by means of an esophagoscope

esophagoscopic adjective

or chiefly British oesophagoscopic

i-ˌsäf-ə-gə-ˈskäp-ik