fiber bundle(n = noun.body) fascicle, fasciculus, fibre bundle - a bundle of fibers (especially nerve fibers);
is a kind of nerve tissue, nervous tissue
is a part of nervous system, systema nervosum
has particulars: fornix, trigonum cerebrale, nerve, nervus

acrylic fiber, animal fiber, atrioventricular bundle, bast fiber, bundle, bundle of his, bundle off, bundle up, castor fiber, cotton fiber, fiber, fiber optic cable, fiber optics, fibre bundle, fibrovascular bundle, glass fiber, man-made fiber, medullated nerve fiber, motor nerve fiber, muscle fiber, myelinated nerve fiber, natural fiber, nerve fiber, optical fiber, plant fiber, polyester fiber, purkinje fiber, staple fiber, striated muscle fiber, synthetic fiber, tampico fiber, vascular bundle, vulcanized fiber