sacrumn. 骶骨學術名詞薦骨：醫學、比較解剖學、畜牧學、舞蹈、動物學、獸醫學骶骨：獸醫學、醫學薦椎：舞蹈、醫學英文釋義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