(n): a demarcated area of the Earth
(n): a system of body parts that together serve some particular purpose
(n): a group of physiologically or anatomically related organs or parts
(n): a brief treatise on a subject of interest; published in the form of a booklet
(n): a formal exposition
(n): a bundle of myelinated nerve fibers following a path through the brain
(n): whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
