Trichrome is a term used to describe a staining process used in histology to differentiate different types of tissues. The term can be substituted with other synonyms, including 'trichromatic,' which indicates the use of three colors in the staining process. Another similar term is "triphasic," which refers to the three distinct stages in which a process occurs. Moreover, the term 'tricolor' can be used interchangeably with trichrome. This term is often used to describe an image or object featuring three different colors. Additionally, the term 'tritonal' is also a synonym for trichrome, which is used to describe a three-toned color system.