Gyrus

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Gyrus \Gy"rus\ (j[imac]"r[u^]s), n.; pl. {Gyri}
     (j[imac]"r[imac]). [L. See {Gyre}, n.]
     A convoluted ridge between grooves; a convolution; as, the
     gyri of the brain; the gyri of brain coral. See {Brain}.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  gyrus
       n : a convex fold or elevation in the surface of the brain [syn:
            {convolution}]
       [also: {gyri} (pl)]