omentum

noun

One of the folds of the peritoneum that connect the stomach with other abdominal organs, especially.

The greater omentum.

The lesser omentum.

In anatomy, a fold or duplication of peritoneum, of two or four peritoneal layers, passing between or hanging down from certain abdominal viscera—the stomach, liver, spleen, and colon.

A free fold of the peritoneum, or one serving to connect viscera, support blood vessels, etc.; an epiploön.