Definition of sternum noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈstɜːnəm//
; NAmE NAmE//ˈstɜːrnəm//
(pl. sternums, sterna
BrE BrE//ˈstɜː//
; NAmE NAmE//ˈstɜːr//
(anatomy) Skeleton and muscles
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the breastbone See related entries: Skeleton and muscles Word Origin mid 17th cent.: modern Latin, from Greek sternon ‘chest’.
See the Oxford Advanced American Dictionary entry: sternum