lobe

noun

: 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.
Body tissue is damaged, and extremities like fingers, toes, ear lobes and the tip of the nose can become numb and appear white or pale. Alexis Simmerman, Austin American Statesman, 26 Jan. 2026 Comprehensive scans were not done, neurological exams were limited, and the possibility of a frontal-lobe injury was never raised. Jake Kanter, Deadline, 26 Jan. 2026 The iconic Venus flytrap (Dionaea muscipula), for example, has hinged leaf lobes equipped with trigger hairs. Scott Travers, Forbes.com, 20 Jan. 2026 Who couldn’t use a little frontal-lobe jumpstart? Jenny Berg, Vogue, 20 Jan. 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

Browse Nearby Words

Cite this Entry

“Lobe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lobe. Accessed 4 Feb. 2026.

Kids Definition

lobe

noun
: a curved or rounded part
especially : one that is part of a bodily organ or part
lobed
ˈlōbd
adjective

Medical Definition

lobe

noun
: 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

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