The acronym "MARCM" stands for "mosaic analysis with a repressible cell marker", a technique commonly used in studying genetic expression and development in model organisms. Synonyms for "MARCM" are limited, as it refers to a specific and widely-used scientific method. However, related terms include genetic mosaics, cell lineage tracing, and somatic recombination. These techniques allow researchers to label and track specific cells or groups of cells over time, providing insight into cellular behavior and developmental processes. Despite the limited synonyms, the use of techniques such as MARCM has greatly advanced our understanding of genetics and developmental biology.