| EHH | esophageal hiatal hernia |
|---|---|
| EMD | electromechanical dissociation; emergency medical dispacher; emergency medical doctor; Emery-Dreifus... |
| EOA | effective orifice area; erosive osteoarthritis; esophageal obturator airway; examination, opinion, a... |
| EP | echo planar; ectopic pregnancy; edible portion; electrophoresis; electrophysiologic; electroprecipit... |
| ERT | esophageal radionuclide transit; estrogen replacement therapy; examination room terminal; external r... |
| lower oesophageal sphincter | <anatomy> A muscular sphincter located at the junction of the oesophagus and the stomach. On closure the lower oesophageal sphincter prevents the back wash (reflux) of stomach acid into the oesophagus where it may damage the mucosa. See: gastrooesophageal reflux disease. (16 Mar 1998) |
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