Karyostenosis

Kar`y`o`ste`no´sis

n.

1.

(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.

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.