'Gyri' definitions:
- Gyri \Gy"ri\ (j[imac]"r[imac]), n. pl.
See Gyrus.
[1913 Webster]
- 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]