LCST (lower critical solution temperature) is a term used in chemistry to describe the temperature at which a solution undergoes phase separation. There are a number of synonyms that can be used to describe this phenomenon, including reversible thermal gelation, thermoreversible phase transition, and temperature-induced phase separation. Understanding and studying LCST is important for a variety of applications, including drug delivery systems, tissue engineering, and smart materials. By controlling the LCST of a solution, it is possible to manipulate its physical properties, such as its viscosity, opacity, and solubility. As such, exploring synonyms for LCST can help researchers gain a deeper understanding of this important concept and its potential applications.