lobe
Americannoun
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any rounded projection forming part of a larger structure
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any of the subdivisions of a bodily organ or part, delineated by shape or connective tissue
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short for ear lobe
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any of the loops that form part of the graphic representation in cylindrical coordinates of the radiation pattern of a transmitting aerial Compare radiation pattern
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any of the parts, not entirely separate from each other, into which a flattened plant part, such as a leaf, is divided
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A rounded projection, as on a leaf or petal. The leaves of many oak species have prominent lobes.
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An anatomical division of an organ of the body. The liver, lungs, and brain are all characterized by lobes that are held in place by connective tissue.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of lobe
1515–25; < Medieval Latin lobus ( Late Latin: hull, husk, pod) < Greek lobós, akin to Latin legula lobe of the ear
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Somebody who was managing this temporal lobe epilepsy, but also somebody who works in humanitarian aid field in this moment of unprecedented attacks against our aid workers.
From Los Angeles Times ● Jul. 8, 2026
Barbara Sahakian, a neuropsychologist at the University of Cambridge who specialises in ADHD, said the condition affects the brain's frontal lobe, which play a key role in organisation and focus.
From BBC ● Mar. 25, 2026
Scroll through TikTok or Instagram and you will likely see the familiar line: “Your frontal lobe isn’t fully developed yet.”
From Science Daily ● Feb. 19, 2026
Dr. Flaherty provocatively suggests that Van Gogh suffered from temporal lobe epilepsy and that his condition may have played an important role in his achievements.
From The Wall Street Journal ● Feb. 3, 2026
This ball is at the lobe of the brain.’
From "The Once and Future King" by T. H. White
Participants who spent a large portion of their workday sitting actually had larger frontal and occipital lobes and lower white matter hyperintensity volumes.
From Science Daily ● Jul. 21, 2026
About 10 percent of them are classified as contact binaries, meaning they consist of two connected lobes that give them a snowman-like appearance.
From Science Daily ● Feb. 23, 2026
Even so, the findings suggest that synchronized activity between the frontal and parietal lobes plays a role in altruistic decision making.
From Science Daily ● Feb. 13, 2026
Fabbri notes that pterosaurs also had enlarged optic lobes.
From Science Daily ● Dec. 9, 2025
Portia pulled her earrings so that the lobes of her ears stretched like rubber.
From "The Heart is a Lonely Hunter" by Carson McCullers
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
