Final answer:
A segment is not inherently related to waveforms, and in geometry, it typically refers to a part of a line or curve. A pulse wave is a sudden disturbance with only one or a few waves generated, occurring in mediums such as air or water.
Step-by-step explanation:
A segment in the context of waveforms refers to a division or a part of a waveform. However, the options provided in the question do not accurately define a segment in this context. A segment is typically related to lines or curves in geometry, not directly to waveforms. Therefore, the correct answer would be that a segment is not inherently related to waveforms.
A pulse wave is accurately defined as a sudden disturbance in a medium where only one or a few waves are generated. This can occur in various mediums such as air, water, or even within an electrical circuit. Pulse waves are characterized by their solitary nature and are not continuous like sinusoidal waves.