Definition of "gastroscopy" [gas•tros•co•py]

• An examination of esophagus, stomach and duodenum using endoscope. (noun)

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• "Symptoms similar to those of a gastric ulcer, and a gastroscopy discovers an ugly running sore and a suspected tumor, later identified under a microscope."
• "When he was a year old, they found a female doctor in Philadelphia who was a pioneer in pediatric gastroscopy."
• "I was in hospital this morning for a gastroscopy - nothing too worrying, just one of those camera and light thingies they put down your throat to make sure everything's in one piece."