brain/brane

brain (brān)

Noun

• The portion of the vertebrate central nervous system that is enclosed within the cranium, continuous with the spinal cord, and composed of grey matter and white matter. It is the primary centre for the regulation and control of bodily activities, receiving and interpreting sensory impulses, and transmitting information to the muscles and body organs. It is also the seat of consciousness, thought, memory, and emotion.
• Intellectual ability; mind: a dull brain; a quick brain.
• A highly intelligent person.
• The primary director or planner, as of an organization or movement. Often used in the plural.
• The control centre, as of a ship, aircraft, or spacecraft.

brane

• In theoretical physics, branes or p-branes are spatially extended objects that appear in string theory and its relatives (M-theory and brane cosmology). The variable p refers to the spatial dimension of the brane. That is, a 0-brane is a zero-dimensional particle, a 1-brane is a string, a 2-brane is a "membrane", etc. Every p-brane sweeps out a (p+1)-dimensional world volume as it propagates through spacetime.