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.
Stretching nearly the full length of the brain from behind the forehead to the nape of the neck, the corpus callosum is the dense network of neural fibers that makes brain regions with very different functions work together.