8 They're also huge. The Great Lakes touch Canada, Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin. Combined, the length of all five shorelines is about 44 percent of the Earth's circumference.
1 Spindle (textiles) , a device to spin fibers into thread. 2  Spindle (tool) , is the main rotating part of a machine tool, woodworking machine, etc. 3  Segmented spindle, a spindle consisting of discrete elements that can be assembled and disassembled on the fly.
Definition: Spindle fibers are aggregates of microtubules that move chromosomes during cell division. Microtubules are protein filaments that resemble hollow rods. They are found in eukaryotic cells and are a component of the cytoskeleton, cilia, and flagella.