gyrus

noun, plural gy·ri [jahy-rahy] /ˈdʒaɪ raɪ/. Anatomy.

1. a convolution, especially of the brain.

noun plural gyri (ˈdʒaɪraɪ)

1. another name for convolution (def. 3)

n.

convolution between grooves, 1842, from Latin gyrus “circle, circuit, career,” from Greek gyros “ring, circle” (see gyre).

n. pl. gy•ri (-rī′)

1. A rounded ridge, as on the surfaces of the cerebral hemispheres.

Plural gyri

1. A rounded ridge, as on the surfaces of the cerebral hemispheres.