Definitions
1.NounA bundle or cluster.
2.NounA bundle of skeletal muscle fibers surrounded by connective tissue.
3.NounA cluster of flowers or leaves, such as the bundles of the thin leaves (or needles) of pines.
4.NounA discrete bundle of vascular tissue.
5.NounA discrete section of a book issued or published separately, generally as a temporary measure while the work is in progress.