少年科技英语快速入门：认识9百个拉丁语常用字拥抱科技创新

1550s， “act of melting by heat，” from French fusion or directly from Latin fusionem “an outpouring， effusion，” noun of action from fusus， past participle of fundere “to pour， melt” . Meaning “union or blending of different things;state of being united or blended” is by 1776;