The Fissure of Sylvius is a prominent feature in the human brain and is also referred to as the lateral cerebral sulcus. This deep and elongated groove separates the frontal and parietal lobes from the temporal lobe and plays an important role in brain function. Synonyms for the Fissure of Sylvius include lateral sulcus, lateral fissure, sylvian fissure, and fissure of Sylvius. These interchangeable terms refer to the same structure, with each term providing a unique perspective on the anatomy and function of this critical aspect of the human brain. Overall, understanding the synonyms for the Fissure of Sylvius is important for both medical professionals and patients seeking a deeper understanding of human brain function.