fusion

A joining together: 1) of 2 membranes 2) of 2 bones (thus moving as a single bone) 3) of 2 teeth 4) of 2 genes 5) of different images from each eye into a single image 6) liquefaction, i.e. melting

References

Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999.