| Noun | 1. | cytology - the branch of biology that studies the structure and function of cellsstainability - (cytology) the capacity of cells or cell parts to stain specifically with certain dyes biological science, biology - the science that studies living organisms microscopic anatomy - the study of microscopic structures of tissues and organs cytogenetics - the branch of biology that studies the cellular aspects of heredity (especially the chromosomes) fix - kill, preserve, and harden (tissue) in order to prepare for microscopic study |