karyostenosis

Century Dictionary and Cyclopedia

1. n. Amitosis, akinesia, or direct cell-division, as distinguished from mitosis or karvokinesis: so called because the nucleus divides by simple constriction without forming a spindle. See amitosis, with cut.

GNU Webster's 1913

1. n. (Biol.) Direct cell division (in which there is first a simple division of the nucleus, without any changes in its structure, followed by division of the protoplasm of the cell); -- in opposition to karyokinesis.