A semogram is a linguistic unit that carries meaning within a written text or spoken language. It can be a word, phrase, or symbol that conveys specific information or contributes to the overall communication in a given context.
Semogram
The zigzag lines recorded on a seismograph are called seismic waves. These waves represent the vibrations of the Earth caused by the release of energy during an earthquake. The different patterns and sizes of the waves help scientists analyze the earthquake's characteristics.
the ground movement caused by seismic waves