Definition of breastbone in English:


Syllabification: breast·bone
Pronunciation: /ˈbrestˌbōn


  • A thin, flat bone running down the center of the chest and connecting the ribs. Also called sternum.
    More example sentences
    • 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.

More definitions of breastbone

Definition of breastbone in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
a small amount; a little