n. the study of the structure and function of cells. The examination of cells under a microscope is used in the diagnosis of various diseases. These cells are obtained by scraping an organ, as in cervical cytology (see cervical smear, liquid-based cytology), by aspiration (see aspiration cytology), or they are collected from cells already shed (exfoliative cytology). See also biopsy. —cytologicaladj.
Subjects: Science and Mathematics — Medicine and Health.