- A condensation and reduction in the size of a cell or cell nucleus, usually associated with hyperchromatosis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for pyknosis
Pyknosis is a process of kosmic condensation, or limitation for purposes of manifestation.The Mystery of Space
Robert T. Browne