FormolMueller fluid is a widely used fixative in histopathology for preserving tissue samples during the processing phase. The term itself, "FormolMueller fluid", is specific to this particular fixative. However, when referring to synonyms or alternatives, one can mention other similar fixatives that serve the same purpose. Some common substitutes for FormolMueller fluid include formaldehyde solution, formalin, or buffered formalin solution. These synonyms are widely recognized and used in histological laboratories and medical research facilities. While the specific chemical formulations may vary slightly, these alternatives are all fixatives that effectively preserve tissue samples, allowing for accurate histopathological examination and analysis.