|—n , pl -na, -nums|
|1.||Nontechnical name: breastbone (in man) a long flat vertical bone, situated in front of the thorax, to which are attached the collarbone and the first seven pairs of ribs|
|2.||the corresponding part in many other vertebrates|
|3.||Compare tergum a cuticular plate covering the ventral surface of a body segment of an arthropod|
|[C17: via New Latin from Greek sternon breastbone]|
sternal ster·nal (stûr'nəl)
Of, relating to, or occurring near the sternum.