Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “breastbone”

breastbone

noun [C] uk   /ˈbrest.bəʊn/ us    /-boʊn/
the long, flat vertical bone in the centre of your chestBone structures
(Definition of breastbone from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of breastbone?
Add Cambridge dictionaries to your browser to your website

Translations of “breastbone”

Word of the Day

roost

When birds roost, they go somewhere to rest or sleep.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More