fusion
noun
1.
2.
the state of being combined into one body
3.
the merging of adjacent sounds or syllables or words
4.
a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy
5.
the combining of images from the two eyes to form a single visual percept
6.
correction of an unstable part of the spine by joining two or more vertebrae; usually done surgically but sometimes done by traction or immobilization
7.