1. Plural of karyosome; dense, stainable bodies or structures within the nucleus of a cell, particularly visible during certain stages of cell division.
Usage: technical; biology; cytology

Examples

• Under the microscope, the karyosomes appeared as dark-staining regions within the cell nucleus.
• During meiosis, karyosomes become more prominent and easier to observe.
• The biologist examined the karyosomes to understand the cell's chromosomal organization.
• Karyosomes are composed of condensed chromatin and associated proteins.