gy·​rus ˈjī-rəs How to pronounce gyrus (audio)
plural gyri ˈjī-ˌrī How to pronounce gyrus (audio)
: a convoluted ridge between anatomical grooves
especially : convolution sense 2

Examples of gyrus in a Sentence

Recent Examples on the Web These areas included the inferior frontal gyrus, the supplemental motor area, the supramarginal gyrus and the precuneus, which are all involved in speech processing. Emily Makowski, Scientific American, 4 Apr. 2024 Morris knew from her training that such distortions could be triggered by a specific area of the brain called the fusiform gyrus, which is responsible for face perception, object recognition and reading. Sandee Lamotte, CNN, 22 Mar. 2024 Ancient Seal Findings The coronal gyrus, located inside the cranial cavities, receives signals from whiskers. Elizabeth Gamillo, Discover Magazine, 23 Aug. 2023 Pareidolia, our peculiar ability to detect faces in water stains, clouds and even grilled cheese sandwiches, arises from our exquisitely sensitive face-detection neurons, located in a specialized brain region called the fusiform gyrus. Susana Martinez-Conde, Scientific American, 1 May 2020 However, the biggest differences seemed to occur in a brain region called the middle temporal gyrus, which is involved in processing semantic memory and language. Popular Science, 12 Oct. 2023 The researchers found that kids who were victims of bullying had a thicker cortex in the fusiform gyrus compared to kids who didn’t have any bullying problems. Emilie Le Beau Lucchesi, Discover Magazine, 5 Sep. 2023 From this process, the researchers found that removing brainwave data collected from an area on both the left and right sides of the brain called the superior temporal gyrus (STG) caused the biggest drop in reconstruction accuracy. IEEE Spectrum, 18 Aug. 2023 The team compared the size and structure of a brain region called the coronal gyrus. Laura Baisas, Popular Science, 17 Aug. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'gyrus.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


New Latin, from Latin, circle — more at gyre

First Known Use

circa 1842, in the meaning defined above

Time Traveler
The first known use of gyrus was circa 1842

Dictionary Entries Near gyrus

Cite this Entry

“Gyrus.” Dictionary, Merriam-Webster, Accessed 23 Jul. 2024.

Medical Definition


gy·​rus ˈjī-rəs How to pronounce gyrus (audio)
plural gyri -ˌrī How to pronounce gyrus (audio)
: a convoluted ridge between anatomical grooves
especially : convolution

More from Merriam-Webster on gyrus

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