Definition of breastbone in English:
A thin, flat bone running down the centre of the chest, to which the ribs are attached. Also called sternum.
- To get to your heart the surgeon makes an incision down the middle of your chest and separates your breastbone.
- The heart is a hollow, muscular organ that lies in the center of the chest under the breastbone.
- All the blood cells are formed in the marrow of the flat bones such as the skull, breastbone and pelvis.
Definition of breastbone in:
- US English dictionary
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