Merriam-Webster Collegiate Dictionary - endomorphic

 adjective  Etymology: endoderm + -morphic; from the predominance in such types of structures developed from the endoderm  Date: 1940  1. of or relating to the component in W. H. Sheldon's classification of body types that measures the massiveness of the digestive viscera and the body's degree of roundedness and softness  2. having a heavy rounded body build often with a marked tendency to become fat  • endomorphy noun