upper GI series

noun

: fluoroscopic and radiographic examination (as for the detection of gastroesophageal reflux, hiatal hernia, or ulcers) of the esophagus, stomach, and duodenum during and following oral ingestion of a solution of barium sulfate

called also upper gastrointestinal series

Dictionary Entries Near upper GI series

Cite this Entry

“Upper GI series.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/upper%20GI%20series. Accessed 18 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!