sulcus
English Thesaurus
1. (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain (noun.body)
| hypernym | : | fissure, |
| definition | : | (anatomy) a long narrow slit or groove that divides an organ into lobes (noun.body) |
| hyponym | : | central sulcus, fissure of rolando, rolando's fissure, sulcus centralis, |
| definition | : | a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes (noun.body) |
| hyponym | : | fissure of sylvius, lateral cerebral sulcus, sulcus lateralis cerebri, sylvian fissure, |
| definition | : | the deepest and most prominent of the cortical fissures; separates the frontal lobes and temporal lobes in both hemispheres (noun.body) |
| hyponym | : | parieto-occipital fissure, parieto-occipital sulcus, |
| definition | : | a sulcus near the posterior end of each hemisphere that separates the parietal lobes and the occipital lobes in both hemispheres (noun.body) |
| hyponym | : | calcarine fissure, calcarine sulcus, |
| definition | : | a sulcus in the mesial surface of the occipital lobe of the cerebrum (noun.body) |
| domain category | : | anatomy, general anatomy, |
| definition | : | the branch of morphology that deals with the structure of animals (noun.cognition) |
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