\ˈlōb \

Definition of lobe 

: 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

Bernia Garner was working behind the nurse's station when the patient jumped over the counter, knocked her to the ground and bit her ear lobe off. Martha Bellisle, The Seattle Times, "Nurse who lost part of ear in patient assault sues state," 8 Nov. 2018 Thompson went on to do a vertical stack of two studs on my right lobe. Devon Abelman, Allure, "Everything You Want to Know About Tragus Piercings — Including How Much They Hurt," 13 Aug. 2018 Both of them are embedded in the Homunculus Nebula, the product of earlier eruptions that holds about 15 solar masses of material in its two main lobes, which roughly align with the stars' orbit. John Timmer, Ars Technica, "Just what’s happened to our neighborhood’s most violent star, η Carinae?," 6 Aug. 2018 Whales and dolphins independently control the left and right lobes of their brains, keeping one alert while the other sleeps. Eric Tegler, Popular Mechanics, "Russia and China's "Enhanced Human Operations" Terrify the Pentagon," 16 Dec. 2015 These involved nearly half of all electrodes and occurred in all lobes and both hemispheres of patients’ brains. Simon Makin, Scientific American, "“Traveling” Brain Waves May Be Critical for Cognition," 28 June 2018 But only celebrity babies' lobes have the power to ignite an Internet debate about the safety of body jewelry for youngsters. Carly Mallenbaum, USA TODAY, "Kylie Jenner and Stormi spark debate: How old must a baby be before getting pierced ears?," 12 July 2018 The acquisition put Lilis in the Delaware Basin, the less developed western lobe of the Permian that extends into New Mexico. Jordan Blum, San Antonio Express-News, "Lilis may be an acquisition target," 13 July 2018 But when a baby suckles a mom’s breasts, the mother’s brain’s posterior lobe secretes oxytocin, and some of that pain is relieved with the release of milk. Julia Belluz, Vox, "Separating breastfeeding children from mothers is exceptionally cruel," 15 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lobe.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of lobe

1541, in the meaning defined above

History and Etymology for lobe

Middle French, from Late Latin lobus, from Greek lobos

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Statistics for lobe

Last Updated

14 Dec 2018

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Time Traveler for lobe

The first known use of lobe was in 1541

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More Definitions for lobe



English Language Learners Definition of lobe

: a curved or rounded part of something (such as a leaf or a part of the body)


\ˈlōb \

Kids Definition of lobe

: a rounded part a lobe of a leaf the lobe of the ear

Other Words from lobe

lobed \ˈlōbd \ adjective


\ˈlōb \

Medical Definition of lobe 

: 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

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More from Merriam-Webster on lobe

Rhyming Dictionary: Words that rhyme with lobe

Spanish Central: Translation of lobe

Nglish: Translation of lobe for Spanish Speakers

Britannica English: Translation of lobe for Arabic Speakers

Britannica.com: Encyclopedia article about lobe

Comments on lobe

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having a pattern of small flowers

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