from The Century Dictionary.
- Surrouuding an island; specifically, in anatomy, surrounding the so-called island of Reil in the brain.
Sorry, no etymologies found.
The Sulcus Circularis (circuminsular fissure) (Fig. 731) is on the lower and lateral surfaces of the hemisphere: it surrounds the insula and separates it from the frontal, parietal, and temporal lobes.