Final answer:
A suture with interlocking bone edges that appears wavy is a synarthrosis suture, which is a type of fibrous joint that is immobile and filled with fibrous connective tissue to protect the brain and strengthen the skull.
Step-by-step explanation:
A suture in which the bone edges are interlocked together, appearing as a wavy line, is known as a synarthrosis suture. These fibrous joints are immobile or essentially immobile and are characteristic of the connections between most bones of the skull, with the exception of the mandible.
The fibrous connective tissue that fills the narrow gaps between the bones ensures a tight junction that protects the brain and strengthens the structure of the skull.