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Noun: Sterna
  1. A genus of Sterninae
    - genus Sterna
Noun: sternum (sternums,sterna)  stur-num
  1. The flat bone that articulates with the clavicles and the first seven pairs of ribs
    - breastbone

Type of: bird genus, bone, os[2]

Part of: axial skeleton, chest, pectus, Sterninae, subfamily Sterninae, thorax

Encyclopedia: Sterna, Evros