Examples from the Web for fusibility
Lead was probably used at first for its fusibility only, but afterward it was certainly introduced for economical reasons.
Iron, which is nearly infusible, acquires almost the fusibility of gold when alloyed with this precious metal.A Dictionary of Arts, Manufactures and Mines|Andrew Ure
It possesses a convenient degree of fusibility, above that of zinc and tin, but much lower than that of copper.
The fusibility of clays is a characteristic which has been very imperfectly studied.The Natural History of Clay|Alfred B. Searle
Nevertheless, it would be advancing too much to pretend that we must attribute all to fusibility, and nothing to density.Buffon's Natural History. Volume X (of 10)|Georges Louis Leclerc de Buffon