Definition of breastbone in English:

Share this entry


Pronunciation: /ˈbrɛs(t)bəʊn/


A thin, flat bone running down the centre of the chest, to which the ribs are attached. Also called sternum.
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.
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.