fuse (revisited as a verb)

4. V-RECIP

When things fuse or are fused, they join together physically or chemically, usually to become one thing. You can also say that one thing fuses with another.     

• The skull bones fuse between the ages of fifteen and twenty-five.     
• Conception occurs when a single sperm fuses with an egg.     
• Manufactured glass is made by fusing various types of sand.     
• Their solution was to isolate specific clones of B cells and fuse them with cancer cells.   
• The flakes seem to fuse together and produce ice crystals. 

5. V-RECIP

If something fuses two different qualities, ideas, or things, or if they fuse, they join together, especially in order to form a pleasing or satisfactory combination.     

• His music fused the rhythms of jazz with classical forms.     
• What they have done is fuse two different types of entertainment, the circus and the rock concert.     
• Past and present fuse.   
• =  combine   

....... Cobuild