gy·​rus | \ ˈjī-rəs How to pronounce gyrus (audio) \
plural gyri\ ˈjī-​ˌrī How to pronounce gyrus (audio) \

Definition of gyrus

: a convoluted ridge between anatomical grooves especially : convolution sense 2

Examples of gyrus in a Sentence

Recent Examples on the Web The condition is associated with abnormalities or damage to part of the right side of the brain called the fusiform gyrus. Ebony Williams, ajc, 11 July 2022 In humans, neuroimaging studies have pinpointed a dedicated network for face selectivity in the brain, including an area known as the fusiform gyrus. Jennifer Ouellette, Ars Technica, 27 Apr. 2022 Studies conducted in the 1990s using EEG and the imaging technique magnetoencephalography (MEG) largely confirmed the positioning of the classic homunculus, placing the genitals on the inside wall of the postcentral gyrus. Dana G. Smith, Scientific American, 17 Mar. 2022 The group found that for men, the connection between the left angular gyrus and the rest of the brain was increased, while in women, the connection was decreased. Jordan Mendoza, USA TODAY, 23 Nov. 2021 The region, called the fusiform gyrus, lines the base of the occipital and temporal lobes and is specialized for facial recognition. Susan Pinker, WSJ, 15 July 2021 It is usually caused by damage to the fusiform gyrus in the posterior temporal lobe and anterior portion of the occipital lobe. Daniel Gibbs, Scientific American, 21 Apr. 2021 With time, these neurofibrillary tangles can spread backwards into the fusiform gyrus. Daniel Gibbs, Scientific American, 21 Apr. 2021 That was not entirely surprising, considering the area of his brain that was affected included one of the areas involved in language processing - the left superior temporal gyrus. Eva Amsen, Forbes, 26 Feb. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gyrus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of gyrus

circa 1842, in the meaning defined above

History and Etymology for gyrus

New Latin, from Latin, circle — more at gyre

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Time Traveler for gyrus

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The first known use of gyrus was circa 1842

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Last Updated

14 Jul 2022

Cite this Entry

“Gyrus.” Dictionary, Merriam-Webster, Accessed 13 Aug. 2022.

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More Definitions for gyrus


gy·​rus | \ ˈjī-rəs How to pronounce gyrus (audio) \
plural gyri\ -​ˌrī How to pronounce gyrus (audio) \

Medical Definition of gyrus

: a convoluted ridge between anatomical grooves especially : convolution

More from Merriam-Webster on gyrus Encyclopedia article about gyrus


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