gastric balloon noun1 •A temporary, non-surgical weight loss device placed inside the stomach to help a person feel full faster and eat less. The balloon is inserted through the mouth using an endoscope and is usually removed after several months.This isn’t the first time she has hidden a weight-loss management attempt from her husband. “I went to Turkey and had a gastric balloon, and I didn’t tell anyone, not even him,” she says. — 2025 formsgastric balloons