Variegation histology, also known as heterogeneity in tissue samples, can be described using a variety of synonyms. Terms such as cellular diversity, tissue heterogeneity, and morphological variation all refer to the presence of differing cell types or tissue structures within a sample. Other terms, such as polychromaticity, motley appearance, and mottling, convey the visual characteristics of variegation at a cellular level. At a more molecular level, terms such as genetic heterogeneity or allelic variation may be used to describe differences in gene expression or genotypic variation within a tissue sample. Ultimately, the variety of synonyms available to describe variegation histology underscores the complex and dynamic nature of tissue structure and function.