Divaricator is a rare and uniquely specific term in the English language, referring to someone or something that has the ability to spread apart or loosen something, such as a muscle or joint. While there are not many synonyms for this particular word, some possible alternatives include: spreader, opener, stretcher, expander, dislocator, and separator. These terms might be used to describe tools or machinery designed to pry things apart, as well as physical therapists or massage therapists who focus on manipulating the body's structures. Although these words may not fully capture the specificity of divaricator, they can be useful in various contexts where the concept of spreading apart or loosening comes into play.