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 lobes fan straight out from the tree without any discernible stems. — Katie Hill, Outdoor Life, 6 Aug. 2026 At first glance, corals present as little more than colorful rocks — piles of lobes, stalagmites, and branches poking out from the seafloor. — Marlowe Starling, Quanta Magazine, 5 Aug. 2026 In late December, Manilow underwent a lobectomy to remove one of the lobes of his lungs. — Marina Watts, Entertainment Weekly, 5 Aug. 2026 People who spent a lot of their workdays sitting had larger lobes and lower volumes of white matter hyperintensity than the most serious TV watchers. — Helen Carefoot, Flow Space, 27 July 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 11 Aug. 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

Nglish: Translation of lobe for Spanish Speakers

Britannica.com: Encyclopedia article about lobe

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