spinal fusion spinal fluid • spinalis · · · Info · Definitions · Synonyms · Characters · · spinal fusion · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) correction of an unstable part of the spine by joining two or more vertebrae; usually done surgically but sometimes done by traction or immobilization. Synonyms: fusion, spinal fusion. · · Noun Definition 1 Synonyms · · · fusion · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 u latin small letter u U+0075