Define breastbone (noun) and get synonyms. What is breastbone (noun)? breastbone (noun) meaning, pronunciation and more by Other entries for this word.
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The sternum is also called the breast bone. It is a bone in the anterior of the chest .
Nontechnical name: breastbone. 2. (Zoology) the corresponding part in many other vertebrates. 3. (Zoology) a cuticular plate covering the ventral surface of a.
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