cytoskeleton /(sī`tō̇*skĕl"ĭ*t'n)/

cy·to·skel·e·ton

cytoskeleton

n.
  1. An arrangement of microtubules, microfilaments, and larger filaments within a cell serving to provide structural support of components of the cell, and to transport components from one part of the cell to another; the filaments are composed of protein and form a latticelike arrangement which may change rapidly with time. (Cell Biology)