lobe

American  

[lohb] / loʊb /

noun

• lobes
  plural

1. 

   a roundish projection or division, as of an organ or a leaf.

2. earlobe.

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lobe British  

/ ləʊb /

noun

1. any rounded projection forming part of a larger structure

2. any of the subdivisions of a bodily organ or part, delineated by shape or connective tissue

3. short for ear lobe

4. 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

5. 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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lobe Scientific  

/ lōb /

1. A rounded projection, as on a leaf or petal. The leaves of many oak species have prominent lobes.

2. 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.

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Other Word Forms

Derived Forms

• multilobe
  noun

Inflected Forms

Nouns

• lobes
  plural

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

See Examples For:

lobe lobes

Commercial speculation is only one lobe of the American story; so too is public-spiritedness, of which there is no better example than Hoover Dam.

From The Wall Street Journal ● Jun. 27, 2026

"Then, when you go to put it in your ear, pull on your ear lobe with the opposite hand to open up the ear canal, insert the earplug and let it fully expand."

From Science Daily ● Jun. 10, 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

The results showed that areas within the frontal lobe mature gradually from the back toward the front.

From Science Daily ● Feb. 19, 2026

When a person is clearheaded, the frontal lobe becomes freed of the humming and buzz of external pressure.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel

Psychiatric disorders were associated with elevated PAD in the frontal and temporal lobes, while dementia was linked to higher PAD in the frontal and occipital cortex.

From Science Daily ● Sep. 29, 2026

In extended sources, researchers observed systematic age gradients that are consistent with the movement of plasma through the lobes.

From Science Daily ● Sep. 4, 2026

Early in the disease, regions around the hippocampus, deep within the brain's temporal lobes, are among the first to be affected.

From BBC ● Aug. 31, 2026

"This dramatic layering of young jets inside older, exhausted lobes is the signature of an episodic AGN -- a galaxy whose central engine keeps turning on and off over cosmic timescales."

From Science Daily ● Apr. 13, 2026

I painted the vuvv anti-gravity lobes and the towers and hanging vanes of a rich-people cloud-complex after Chloe and I visited one.

From "Landscape with Invisible Hand" by M.T. Anderson