Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “emphysema”

emphysema

noun [U] uk   /ˌem.fəˈsiː.mə/ us  
a condition in which the small bags in the lungs become filled with too much air, causing breathing difficulties and heart problems: Heavy cigarette smoking often causes emphysema.Respiratory disorders
(Definition of emphysema from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of emphysema?
Add Cambridge dictionaries to your browser to your website

Definitions of “emphysema” in other dictionaries

Word of the Day

improvisation

a performance that an actor, musician, etc. has not practised or planned

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