What is the definition of mechanical waves

A mechanical wave is a wave where there's

some material doing the waving.

Examples:

- - ripples on water

- - waves on a rope

- - waves on a spring

- - waves on a Slinky

- - sound waves in air

- - seismic waves in rock

- - vibrations on a guitar string

- - vibrations on a violin string

A mechanical waves is a wave that is an oscillantion of matter, and therefore transfers energy through a medium.