A fascicle's a bundle or a cluster. Fascicle may also refer to: Muscle fascicle, in anatomy, a bundle of skeletal muscle fibers surrounded by connective tissue Nerve fascicle, in anatomy, a larger bundle of axons (nerve fibers) enclosed by the perineurium a bundle of thin leaves of pines A discrete section of a book issued or published in parts. Small clusters of flowers in the botanical description of flowering plants… (More on Fascicle)