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gyrus

American  
[jahy-ruhs] / ˈdʒaɪ rəs /

noun

Anatomy.
  • gyri
    plural
  1. a convolution, especially of the brain.


gyrus British  
/ ˈdʒaɪrəs /

noun

  1. another name for convolution

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

gyrus Scientific  
/ jī′rəs /
  • gyri
    plural
  1. A rounded ridge, as on the surfaces of the cerebral hemispheres.


Other Word Forms

Derived Forms

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Nouns

Etymology

Origin of gyrus

1835–45; < Latin gȳrus; see gyre

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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.

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MRI scans revealed that most of the brain activity was concentrated in the angular gyrus, a portion of the parietal lobe of the brain.

From Salon ● Jun. 5, 2024

The inferior frontal gyrus, key in inhibitory control, may play a crucial role in how adolescents regulate their engagement with rewarding stimuli such as social media.

From Science Daily ● May 30, 2024

Firstly, the researchers used a technique called optogenetics, where they added light-sensitive proteins to newly-formed neurons in the dentate gyrus, allowing the neurons to be activated by light.

From Science Daily ● May 20, 2024

Additionally, they found that 1.8% of the parahippocampal gyrus and 0.8% of the cerebellum had shrunk compared to patients who were not COVID-19 positive.

From Salon ● Dec. 27, 2023

The choroid plexus of the pia mater turns round the gyrus hippocampi, and enters the descending cornu through the lateral part of the great transverse fissure between the taenia hippocampi and optic thalamus.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" by Various

The analysis points to involvement of areas within the frontolimbic brain regions, such as the inferior and middle frontal gyri, in these relationships.

From Science Daily ● May 30, 2024

Importantly, high flow was also associated with decreased activity in the brain's superior frontal gyri, an executive control region.

From Science Daily ● Mar. 4, 2024

Volume loss affected the gyri, subcortical perisylvian area, insula, and part of the striate nucleus.

From Textbooks ● Dec. 21, 2021

In other ways, however, they differed substantially. For example, women showed significantly more activity in the left inferior frontal gyri, a region important for language.

From Salon ● Mar. 15, 2014

Others believe it could refer to gyri, the ridges on the outer surface of the brain.

From "The First State of Being" by Erin Entrada Kelly

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