lobe

noun

ˈlōb How to pronounce lobe (audio)
: a curved or rounded projection or division
specifically : a usually somewhat rounded projection or division of a bodily organ or part

Examples of lobe in a Sentence

the frontal lobe of the brain
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The pontiff was diagnosed with the common cancer of lung adenocarcinoma, and doctors removed the lower lobe of his right lung during a procedure that lasted about 90 minutes. — Alex Sundby, CBS News, 21 Oct. 2026 After a short stay at a hospital in Rome, where doctors removed the lobe of his right lung, Leo returned home on October 17. — Max Saltman, CNN Money, 21 Oct. 2026 The plans involving the pope were made before the 71-year-old Leo had the lower lobe of his right lung removed last week and was diagnosed with lung cancer. — ABC News, 20 Oct. 2026 Leo made the appeal to Putin during a phone call Friday while recovering at Rome’s Gemelli hospital from surgery to remove the lower lobe of his right lung. — Los Angeles Times, 19 Oct. 2026 See All Example Sentences for lobe

Word History

Etymology

Middle French, from Late Latin lobus, from Greek lobos

First Known Use

1541, in the meaning defined above

Time Traveler
The first known use of lobe was in 1541

Phrases Containing lobe

Rhymes for lobe

See All Rhymes for lobe

Browse Nearby Words

lobcock
lobe
lobectomy
See all Nearby Words

Cite this Entry

“Lobe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lobe. Accessed 27 Oct. 2026.

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Kids Definition

lobe

noun
ˈlōb How to pronounce lobe (audio)
: a curved or rounded part
especially : one that is part of a bodily organ or part
lobed
ˈlōbd
adjective

Medical Definition

lobe

noun
ˈlōb How to pronounce lobe (audio)
: a curved or rounded projection or division: as
a
: a more or less rounded projection of a body organ or part
the lobe of the ear
b
: a division of a body organ (as the brain, lungs, or liver) marked off by a fissure on the surface

More from Merriam-Webster on lobe

Britannica.com: Encyclopedia article about lobe

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