The term fusion is often used as shorthand for nuclear fusion, but it is also a general term describing the merging of two or more entities into a single entity. The term "heat of fusion" describes the additional heat energy that is required to convert a solid that is already at its melting point into a liquid at the same temperature.
... de Janeiro
Rio Grande do Norte
Rio Grande do Sul
Rondônia
Roraima[?]
Santa Catarina
São Paulo
Sergipe
Tocantins
Geography
Main article: Geography of ...