Final answer:
The developmental elevated rounded part of the crown that forms a division on the occlusal surface of a tooth is known as a cusp, particularly relevant in cuspid or canine teeth.
Step-by-step explanation:
The developmental elevated rounded part of the crown that forms a major division of the occlusal surface is known as a cusp. These cusps are part of the crown of a tooth, which is the portion visible superior to the gum line. In particular, a cuspid (also known as a canine tooth) has a pointed cusp used for tearing and shredding food. The two main parts of a tooth are the crown and the root. Within the crown and root is the pulp cavity which contains nerves and blood vessels, and is surrounded by dentin, a bone-like tissue. The dentin in the crown is covered by enamel, and in the root, it is covered by cementum.