1. A network of protein filaments and tubules in the cytoplasm of a cell that provides structural support, enables cell movement, and facilitates transport of materials within the cell.
Usage: biology term; typically used in singular form

Examples

• The cytoskeleton gives the cell its shape and allows it to move.
• Microtubules are one of the three main components of the cytoskeleton.
• Without a functional cytoskeleton, cells cannot divide properly.
• The cytoskeleton helps transport organelles throughout the cell.
• Actin filaments in the cytoskeleton enable muscle cell contraction.
• Researchers study the cytoskeleton to understand how cells maintain their structure.