gyrus

American  

[jahy-ruhs] / ˈdʒaɪ rəs /

noun

Anatomy.

plural

gyri

1. a convolution, especially of the brain.

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gyrus British  

/ ˈdʒaɪrəs /

noun

1. another name for convolution

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gyrus Scientific  

/ jī′rəs /

plural

gyri

1. A rounded ridge, as on the surfaces of the cerebral hemispheres.

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Other Word Forms

• subgyrus noun

Etymology

Origin of gyrus

1835–45; < Latin gȳrus; gyre

Compare meaning

How does gyrus compare to similar and commonly confused words? Explore the most common comparisons:

• gyrus vs. sulcus

Example Sentences

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

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

Most lost are dentate gyrus neuroblasts, which are essential for creating neurons in the hippocampus, a region linked to memory and diseases like Alzheimer's.

From Science Daily • Oct. 26, 2023

The angular gyrus is at B. A is over the anterior branch of the middle meningeal artery, and the bifurcation of the lateral or Sylvian fissure; AC follows the horizontal limb of the lateral fissure.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander