Wave motion refers to the transfer of energy through a medium without the permanent displacement of particles. It can occur in various forms, including mechanical waves, which require a medium, and electromagnetic waves, which do not. The discussion highlights the need for specificity when defining wave motion, as the term can encompass a wide range of phenomena. Understanding the context is crucial for a clearer explanation. Overall, wave motion is a fundamental concept in physics that describes how energy propagates through different mediums.