There are several synonyms that can be used for the term "chemical toilet". Some of the most common alternatives include "portable toilet", "porta potty", "outhouse", "mobile toilet", and "camp toilet". Each of these terms refers to a self-contained unit that is designed to be used in outdoor or remote areas. These toilets typically use chemicals or other additives to break down waste and control odors. They are popular for outdoor events, camping trips, and other activities where traditional indoor plumbing is not available. With so many different terms available, it's easy to find a name for these convenient and practical facilities that fits your needs.