1) Excision of a cerebral gyrus 
<procedure> Excision of a cerebral gyrus. ... Origin: G. Gyros, ring, + ektome, excision ... (05 Mar 2000) ... 
(ji-rek´tә-me) excision or resection of a cerebral gyrus, or a portion of the cerebral cortex.
Type: Term Pronunciation: jī-rek′tŏ-mē Definitions: 1. Excision of a cerebral gyrus.
gyrectomy 1. Excision of a convolution (fold, twist, or coil of the brain), or gyrus (convolution on the surface of the cerebral hemisphere), of the cerebrum. 2. Excision or resection of a cerebral gyrus, or of a portion of the cerebral cortex.
excision of a cerebral gyrus.