A sheet of fat that is covered by peritoneum.
The greater omentum is a peritoneal fold, meaning a fold in the lining of the abdominal cavity, that hangs over the stomach like an apron. It extends to the colon and is suspended from the stomach to cover most of the small and large intestine.  The greater omentum (also the great omentum, omentum majus, gastrocolic omentum, epiploon, or, especially in animals, caul) is a large apron-like fold of visceral peritoneum that hangs down from the stomach. It extends from the greater curvature of the stomach, passing in front of the small intestines and reflects on itself to ascend to the transverse colon before reaching to the posterior abdominal wall. The greater omentum is larger than the lesser omentum which hangs down from the liver to the lesser curvature. The common anatomical term epiploic derives from epiploon from the Greek epipleein meaning to float or sail on, since the greater omentum appears to float on the surface of the intestines The lesser omentum is also known as the gastrohepatic omentum or small omentum. This is part of the peritoneum that is found in a double layer and goes from the beginning of the duodenum and stomach’s lesser curvature to the liver. In contrast with the greater omentum, the lesser omentum has the distinction of being very thin. It is continuous with the peritoneum layers that cover the postero-inferior and antero-superior stomach surfaces as well as the first portion of the duodenum. Omentum: A sheet of fat that is covered by peritoneum. The greater omentum is attached to the bottom edge of the stomach and hangs down in front of the intestines. Its other edge is attached to the transverse colon. The lesser omentum is attached to the top edge of the stomach and extends to the undersurface of the liver. gastrohepatic omentum. the part of the lesser omentum attached to the liver. greater omentum. the double fold of peritoneum derived from the dorsal mesogastrium that extends from the greater curvature of the stomach over the floor of the abdomen like an apron; poorly developed in the horse and well developed in ruminants. The portion of the omentum that is suspended from the greater curvature of the stomach and covers the intestines like an apron. It is the largest of the folds of the peritoneum. It dips in among the folds of the intestines and is attached to the transverse colon and mesocolon The omentum as fatty tissue that insulates the abdominal organs. The omentum is a membranous double layer of fatty tissue that covers and supports the intestines and organs in the lower abdominal area. The omentum is made up of the greater omentum which is an important storage for fat deposits and the lesser omentum which connects the stomach and intestines to the liver. Milky spots on the greater omentum contain white blood cells that assist immunity by removing cellular debris. Fat deposited in the omentum makes up a part of the visceral fat; the rest of the visceral fat is deeply embedded between organs. Excess visceral fat deposits in the abdominal area give rise to central obesity. A body with a protruding belly is termed apple shaped. greater omentum. The portion of the omentum that is suspended from the greater curvature of the stomach and covers the intestines like an apron. It is the largest of the folds of the peritoneum. It dips in among the folds of the intestines and is attached to the transverse colon and mesocolon Omentum. The omentum is a part of the body that is found in your lower abdominal area. It is made up of two layers of fatty tissues and both supports and covers the organs and intestines found in this area of the body. In contrast with the greater omentum, the lesser omentum has the distinction of being very thin. It is continuous with the peritoneum layers that cover the postero-inferior and antero-superior stomach surfaces as well as the first portion of the duodenum.
http://www.wisegeek.org/what-is-the-greater-omentum.htm https://en.wikipedia.org/wiki/Greater_omentum http://www.med-health.net/Omentum.html http://www.medicinenet.com/script/main/art.asp?articlekey=4632 http://medical-dictionary.thefreedictionary.com/omentum http://www.laparoscopic.md/digestion/omentum http://medical-dictionary.thefreedictionary.com/omentum http://www.med-health.net/Omentum.html
what is omentum