1. An occurrence that involves the production of a union Noun
2. The state of being combined into one body Noun
3. The merging of adjacent sounds or syllables or words Noun
4. A nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy Noun
5. The combining of images from the two eyes to form a single visual percept Noun
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 Noun