An FHA loan is a home loan that is insured by the FHA. 1  In other words, the offers a guarantee to your bank: if you fail to repay the mortgage, FHA will step up and repay the bank instead.
Freebase(0.00 / 0 votes)Rate this definition: Superior mesenteric artery syndrome. Superior mesenteric artery syndrome is a very rare, life-threatening gastro-vascular disorder characterized by a compression of the third portion of the duodenum by the abdominal aorta and the overlying superior mesenteric artery.
From Wikipedia, the free encyclopedia. Superior mesenteric artery (SMA) syndrome is a rare, potentially life-threatening gastro-vascular disorder characterized by a compression of the third and final portion of the duodenum by the abdominal aorta (AA) and the overlying superior mesenteric artery.he syndrome is typically caused by an angle of 6Â°-25Â° between the AA and the SMA, in comparison to the normal range of 38Â°-56Â°, due to a lack of retroperitoneal and visceral fat (mesenteric fat). In addition, the aortomesenteric distance is 2-8 millimeters, as opposed to the typical 10-20.