The biological term for the study of cells is "cytology." Cytology focuses on understanding the structure, function, and behavior of cells, which are the fundamental units of life. Through cytological techniques, scientists analyze individual cells to identify their components, including the nucleus, organelles, and cytoplasm. This field of biology plays a crucial role in various applications, including medical diagnostics, cancer research, and understanding fundamental biological processes. Advances in microscopy and imaging technologies have significantly enhanced cytological research, allowing for detailed examination and visualization of cellular structures and functions in both health and disease.