greater omentum

https://doi.org/10.1351/goldbook.11035

Omentum passing from the greater curvature of the stomach in front of the small intestine, folding back on itself to fuse into four layers of peritoneal membrane, and ascending to the transverse colon.

Note: The greater omentum functions in fat deposition, contains islands of macrophages that contribute to immune function, and can delimit areas of traumatic tissue damage or infection.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 786 [Terms] [Paper]