Hypertext Webster Gateway: "gyrus"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Gyrus \Gy"rus\, n.; pl. {Gyri}. [L. See {Gyre}, n.]
A convoluted ridge between grooves; a convolution; as, the
gyri of the brain; the gyri of brain coral. See {Brain}.
From WordNet (r) 1.7 (wn)
gyrus
n : a convex fold or elevation in the surface of the brain [syn:
{convolution}]
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