Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

emphysema

play play
noun em·phy·se·ma \ˌem(p)-fə-ˈzē-mə, -ˈsē-\

Medical Definition of emphysema

  1. :  a condition characterized by air-filled expansions in interstitial or subcutaneous tissues; specifically :  a condition of the lung that is marked by distension and eventual rupture of the alveoli with progressive loss of pulmonary elasticity, that is accompanied by shortness of breath with or without cough, and that may lead to impairment of heart action

emphysematous \-ˈzem-ət-əs, -ˈsem-, -ˈzēm-, -ˈsēm-\play play play play adjective
emphysemic \-ˈzē-mik, -ˈsē-\play play adjective



Learn More about emphysema


Seen and Heard

What made you want to look up emphysema? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

marked by propriety and good taste

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

oily prompt angry maudlin
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ