Array of microtubules and associated molecules that forms between opposite poles of a eukaryotic cell during mitosis or meiosis and serves to move the duplicated chromosomes apart.
A moulded shaft, square or of lathe-turned form, a form cut from a rectangular or square plank, one of various forms of spindle in woodwork, made of stone or wood and sometimes of metal, supporting the coping of a parapet or the handrail of a staircase.