Roux-en-Y

noun

A surgical technique where the digestive tract is rearranged into a Y-shaped connection, usually by creating a small stomach pouch and rerouting the small intestine. It is most commonly used in weight-loss surgery (gastric bypass) to reduce food intake and calorie absorption.

Meanings

nounRoux-en-Y (uncountable)
  1. attributiveuncountablemedicineA surgical technique where the digestive tract is rearranged into a Y-shaped connection, usually by creating a small stomach pouch and rerouting the small intestine. It is most commonly used in weight-loss surgery (gastric bypass) to reduce food intake and calorie absorption.

Origin

From French; named after César Roux, the surgeon who first described it.

Full word history & related roots →
Cite this entry
APA

Roux-en-Y. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Roux-en-Y

MLA

“Roux-en-Y.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Roux-en-Y. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Roux-en-Y,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Roux-en-Y.

Source: Roux-en-Y on Wiktionary, CC BY-SA 4.0.