sacrum sacrovertebral • sad · · · Info · Definitions · Characters · · sacrum · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis; its base connects with the lowest lumbar vertebra and its tip with the coccyx. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 m latin small letter m U+006D r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075