The term 'becomes semisolid' can be represented by the four-letter word 'GELS'. GELS are a type of colloid, which is a mixture of two substances that are not completely combined. GELS are formed when a liquid is mixed with a solid, such as a gelatine powder, and the mixture thickens and becomes semisolid. GELS are used in a variety of products, from food to cosmetics, and can be found in many everyday items.