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.
The two sections of the cortex on the left and right sides of the brain connected by a thick, tough band of neural fibers (axons) called the corpus callosum. Corpus Callosum. A thick, tough band of neural fibers (axons) that connect the cerebral hemispheres.