sacrum noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of sacrum noun from the Oxford Advanced American Dictionary

sacrum

noun

NAmE//ˈsækrəm//

, NAmE//ˈseɪkrəm//

(pl. sacra

NAmE//ˈsækrə//

, NAmE//ˈseɪkrə//

or sacrums) (anatomy)

a bone in the lower back, between the two hip bones of the pelvis

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