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.
... resistance failed, the Reformed Church of France reorganized, and was guaranteed toleration under the Edict of Nantes until final revocation of toleration in 1685. ...