What is a transverse wave that only goes through solids?

A transverse wave that only travels through solids is called a shear wave. Shear waves propagate by causing particles in the solid to move perpendicular to the direction of wave propagation, making them useful for detecting subsurface structures in geophysics and engineering applications. Unlike longitudinal waves, shear waves cannot propagate in fluids or gases due to the absence of shear resistance in these mediums.