\ ˈlōb How to pronounce lobe (audio) \

Definition of lobe

: a curved or rounded projection or division specifically : a usually somewhat rounded projection or division of a bodily organ or part

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Examples of lobe in a Sentence

the frontal lobe of the brain
Recent Examples on the Web The autopsy report shows a bullet struck near Taylor's heart, tearing through her main pulmonary artery connecting her heart and lungs, and the lower lobe of her left lung. Tessa Duvall, The Courier-Journal, "Breonna Taylor autopsy report reveals how Louisville police bullets killed her," 26 Sep. 2020 The type of pulse oximeter most people want is a device that is clipped over a finger, toe, or ear lobe to measure the saturation of oxygen in the blood. Sara Hendricks, USA TODAY, "Pulse oximeters are back in stock—here's why you may want one," 7 Aug. 2020 The superpanels contain structural upgrades and cutouts for the VC-25B lower lobe doors including internal airstairs for mission requirements. Kyle Mizokami, Popular Mechanics, "The Next-Gen Air Force One Is Already Over Budget," 30 Apr. 2020 It's made of two lobes that gently came together after forming independently. Ashley Strickland, CNN, "Distant object in our solar system could show how planets form, scientists reveal," 13 Feb. 2020 In recent years, many transplants have come from living donors who give up one kidney or a lobe of the liver. Denise Grady, New York Times, "The Pandemic’s Hidden Victims: Sick or Dying, but Not From the Virus," 20 Apr. 2020 The jungle has nearly taken it over, but eight rounded lobes stemming off a central platform are still discernible. J. B. Mackinnon, The Atlantic, "The Rich Meals That Keep Wild Animals on the Menu," 19 Mar. 2020 An image of the back of the dwarf planet shows black ripples of rock exactly opposite Sputnik Planitia, the basin that makes up the left lobe of Pluto’s heart. Theresa Machemer, Smithsonian Magazine, "More Evidence that Pluto Might Have a Subsurface Ocean," 1 Apr. 2020 Sputnik Planitia, the left lobe, has been carved deep by a 620-mile long nitrogen ice sheet. Jennifer Leman, Popular Mechanics, "Pluto's Heart Turns to Ice at Night, Just Like Yours," 7 Feb. 2020

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

10 Oct 2020

Cite this Entry

“Lobe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lobe. Accessed 30 Oct. 2020.

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More Definitions for lobe


How to pronounce lobe (audio)

English Language Learners Definition of lobe

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


\ ˈlōb How to pronounce lobe (audio) \

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 How to pronounce lobe (audio) \

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

Nglish: Translation of lobe for Spanish Speakers

Britannica English: Translation of lobe for Arabic Speakers

Britannica.com: Encyclopedia article about lobe

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