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

Historical Examples of pyknosis

  • Pyknosis is a process of kosmic condensation, or limitation for purposes of manifestation.

    The Mystery of Space

    Robert T. Browne