karyopyknosis

noun

kar·​yo·​pyk·​no·​sis ˌkar-ē-(ˌ)ō-pik-ˈnō-səs 

: shrinkage of the cell nuclei of epithelial cells (as of the vagina) with breakup of the chromatin into unstructured granules

karyopyknotic

-ˈnät-ik 

adjective