gyrus

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gy·rus

 (jī′rəs)
n. pl. gy·ri (-rī′)
A rounded ridge, as on the surfaces of the cerebral hemispheres.

[Latin gȳrus, circle; see gyre.]

gyrus

(ˈdʒaɪrəs)
n, pl gyri (ˈdʒaɪraɪ)
another name for convolution3
[C19: from Latin; see gyre]

gy•rus

(ˈdʒaɪ rəs)

n., pl. gy•ri (ˈdʒaɪ raɪ)
a convoluted fold of the brain.
[1835–45; < Latin gȳrus; see gyre]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gyrus - a convex fold or elevation in the surface of the brain
anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"
frontal gyrus - any of the convolutions of the outer surface of the frontal lobe of the cerebrum
temporal gyrus - any of the convolutions of the outer surface of the temporal lobe of the cerebrum
parietal gyrus - any of the convolutions of the outer surface of the parietal lobe of the cerebrum
occipital gyrus - any of the convolutions of the outer surface of the occipital lobe of the cerebrum
cerebrum - anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans
central gyrus - either of two gyri on either side of the central sulcus
Translations

gy·rus

n. L. circunvolución, porción elevada de la corteza cerebral;
Broca's ______ de Broca, tercera, frontal inferior;
frontal, superior ______ frontal superior;
inferior, lateral occipital ______ occipital inferior lateral;
superior occipital ______ occipital superior.
References in periodicals archive ?
Right hippocampal gyrus is atrophic and shows increased intensity compared to left (a).
Topics cover include: Various forms of cortical dysfunctions, such as seizures, disconnection syndrome, coma, and dementia; The role of prefrontal cortex in behavior and attention, introducing the topic of autism; Up-to-date information on the auditory, vestibular, gustatory, and limbic systems; The neurochemistry of the limbic system, memory and associated disorders, and the structural and neuronal circuitry of the hippocampal gyrus; Structural organization and associated pathways of the extrapyramidal system, demonstrating the neurochemical basis of movement disorders, and more.
Structures of the limbic system include all cortical and subcortical structures that form the border of the lateral ventricles: the hippocampal formation, the dentate gyrus, the pyriform cortex of the anterior hippocampal gyrus and the cingulate gyrus.