GYRAL

Source: 566, 567

gyral. Gyral, [g soft] a. whirling, circular

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Gy″ral (jī″ral), a. [[See Gyre.]] 1. 1. Moving in a circular path or way; whirling; gyratory.
2. 2. (Anat.) Pertaining to a gyrus, or convolution.