monaster

mon- +‎ aster

monaster (plural monasters)

1. The single aster formation that forms at the equatorial plate at the end of prophase in mitosis.
   • 1951 November, Shinya Inoué & Katsuma Dan, “Birefringence of the Dividing Cell”, in Journal of Morphology, volume 89, number 3:

     After the encounter of the two pronuclei, one quadrant of the former positive cross of the monaster is missing on the side of the egg pronucleus.

   • 2007, Leon P. Bignold, ‎Brian L. D. Coghlan, & ‎Hubertus P.A. Jersmann, David Paul von Hansemann: Contributions to Oncology, →ISBN:

     One finds the longest chromosomes in the vascular epithelial cells if the monaster is well developed (Fig. 24), whilst shortly beforehand (Fig. 15) the chromosomes are still rather short.

   • 2012, Gerhard Czihak, The Sea Urchin Embryo: Biochemistry and Morphogenesis, →ISBN, page 179:

     At the same time the middle piece breaks down and releases the centriole, around which egg cytoplasm forms the sperm monaster.

   • 2013, J. Gray, A Textbook of Experimental Cytology, →ISBN, page 161:

     Large monasters can be produced in egg cells by a variety of methods; drugs, such as strychnine or chloral hydrate (Hertwig, 1887 ), hypertonic sea water (Morgan, 1896; Wilson,1901;Herlant, 1918),and by mechanical agitation (Boveri, 1903; Painter, 1915).

• Martones, Morantes, Sarmento, artemons, monstera, monteras, nearmost, onstream, storeman, tone arms, tonearms