Petaton is a term used in physics to measure very large amounts of energy. It is equivalent to one quadrillion tons of TNT. However, there are several synonyms for petaton, including yottajoule, which is one billion trillion joules of energy. Another synonym is exaton, which is equivalent to one quintillion tons of TNT. Furthermore, there is the zettajoule, which is one sextillion joules of energy, and the zetaton, which is equal to one sextillion tons of TNT. These units of measurement allow scientists and researchers to better understand and communicate the tremendous amount of energy involved in certain processes, such as nuclear reactions and explosions.