أية كلمة؟

التعريف: “How far advanced the cancer is in terms of the size of the primary tumor, spread to nearby lymph nodes, and spread to distant sites in the body. Every type of cancer has its own staging system. See the CancerGuide article on Understanding Cancer Types and Staging for more detailed information on staging.”

أول حرف: S

ما هي الكلمة التي يتم تعريفها؟