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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  
/ jīrəs /
gyri plural
  1. A rounded ridge, as on the surfaces of the cerebral hemispheres.


Other Word Forms

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.

The electrical signals, lasting on average 120 milliseconds, were then found to move down and across the folds of the precentral gyrus to a neighboring auditory cortical subregion, called the superior temporal gyrus.

From Science Daily • Dec. 3, 2024

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

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 Parietal Lobe is also complex; its most anterior gyrus, named ascending parietal or post-central, ascends parallel to and immediately behind the fissure of Rolando.

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

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