lower respiratory tract

noun

Medical Definition of lower respiratory tract

: the part of the respiratory system including the larynx, trachea, bronchi, and lungs — compare upper respiratory tract

Learn More about lower respiratory tract

Cite this Entry

“Lower respiratory tract.” The Merriam-Webster.com Medical Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/medical/lower%20respiratory%20tract. Accessed 29 January 2020.

Comments on lower respiratory tract

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

WORD OF THE DAY

to assert without proof or before proving

Get Word of the Day daily email!

Test Your Vocabulary

January 2020 Words of the Day Quiz

  • image1642096650
  • Which is a synonym of bonhomie?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!