Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sacrum

1 sense of sacrum

Sense 1
sacrum -- (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)
       => bone, os -- (rigid connective tissue that makes up the skeleton of vertebrates)