Spindle fibers are found in eukaryotic cells and are a component of the cytoskeleton as well as cilia and flagella. Microtubules are protein filaments that resemble hollow rods. As with distaff, sometimes formerly used as a metonym for "the female sex," as in Old English spinelhealf "female line of descent," distinguished from sperehealf "male line of descent. Spindle fibers are aggregates of microtubules that move chromosomes during cell division. As a type of something slender, it is attested from 1570s, especially of legs. Spindle transfer, an in vitro fertilization the technique. Sleep spindle, bursts of neural oscillatory activity during sleep. Spindle neuron, a specific class of neuron. Muscle spindle, stretch receptors within the body of a muscle. as "axle of any revolving tool or instrument." As a quantity or measure of yarn ("amount collected on a spindle"), mid-15c. Spindle apparatus or mitotic spindle, a cellular structure in cell biology. the thin, tapering figure occurring during metaphase of cell division, composed of microtubules radiating from the centrioles and connecting to the chromosomes at their centromeres. spindle noun A rod which turns, or on which something turns. a pin tapered at one end or both ends, or something with this shape. Muscle spindle, stretch receptors within the body of a muscle. spindle noun A rod used for spinning and then winding natural fibres (especially wool), usually consisting of a shaft and a circular whorl positioned at either the upper or lower end of the shaft when suspended vertically from the forming thread.
Transferred to the pin in spinning-wheels, then late 18c. Spindle apparatus or mitotic spindle, a cellular structure in cell biology. But it also might be a euphonic insertion, as in kindred, tender, etc., for which process see sound (n.1). The -d- perhaps is by influence of windel "wooden reel for winding yarn" (early 14c., itself perhaps from a derivative of Old Norse vindla "to wind up" or Middle Dutch windelen). It is cognate with Old Saxon spinnila, Old Frisian spindel, Old High German spinnila, German Spindel. What does fold, spindle, or mutilate expression mean. "small tapering bar hung from the end of the thread as it is drawn from the fiber on the distaff," early 13c., spindel, with unetymological -d-, from Old English spinel "small wooden bar used in hand-spinning," properly "an instrument for spinning," from stem of spinnan (see spin (v.)) + instrumental suffix -el (1) as in handle, treadle, thimble, etc. Definition of fold, spindle, or mutilate in the Idioms Dictionary.
0 kommentar(er)
