from the GNU version of the Collaborative International Dictionary of English

  • n. The substance from which attraction spheres develop in mitotic cell division, and of which they consist.

from The Century Dictionary and Cyclopedia

  • n. In cytology, the substance which forms the attraction-spheres, astral rays, and spindle-fibers in the karyokinetic figure of dividing animal and plant cells.


Sorry, no etymologies found.


  • CELL FROM A SALAMANDER. _n_, nucleus; _n'_, nucleolus embedded in the network of chromatin threads; _k_, network of the cell external to the nucleus; _a_, attraction-sphere or archoplasm containing minute bodies called centrosomes; _cl_, membrane enclosing the cell externally, _nl_, membrane surrounding the nucleus;

    Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky


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