The Collaborative International Dictionary of English v.0.48:
oesophagus \oe*soph"a*gus\, n., oesophageal \oe`so*phag"e*al\, a., etc. Same as Esophagus, Esophageal, etc. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Esophageal \E`so*phag"e*al\, a. (Anat.) Pertaining to the esophagus. [Written also [oe]sophageal.] [1913 Webster]