A singly circular linked list is a data structure that consists of a sequence of nodes, where each node contains data and a reference (or pointer) to the next node in the sequence. Unlike a standard linked list, the last node in a singly circular linked list points back to the first node, creating a circular structure. This allows for continuous traversal of the list without needing to reset to the beginning. In a singly circular linked list, you can easily add or remove nodes without shifting other elements, making it efficient for certain operations. This structure is useful in applications like round-robin scheduling and implementing circular buffers, where continuous looping through elements is required.