A roast beef sandwich on white bread is a deli classic. Usually made with beef from the round, or hind leg, section of the cow -- roast beef is one of the leaner cuts of beef with fewer calories than fattier sections. Video of the Day
corpus callosum. a great band of deeply situated transverse white fibers uniting the two halves of the cerebrum in humans and other mammals.
1 The front 2/3 rd s, or in some cases, the entire corpus callosum is divided. 2  The neurosurgeon can approach and divide the corpus callosum by operating between the two brain hemispheres, thus minimizing any potential injury to the brain.