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.
To identify the plant, Kaufmann recommends looking for a notch or lobe that is sometimes found on one side of the oblong leaflets with smooth margins. Patricia Shannon, Southern Living, 17 June 2025 The Blades The incisions are many and have come at every limb and lobe of higher education. David Rosowsky, Forbes.com, 13 June 2025 The inner lobes are bright and short, while the outer lobes are faint and elongated. Robert Lea, Space.com, 9 June 2025 These optic lobes are just two of the over 30 lobes experts study within the animal’s centralized brain, as each lobe helps the octopus process its environment. Kenna Hughes-Castleberry, ArsTechnica, 7 June 2025 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 18 Jul. 2025.

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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