1) Wave mechanic 
A transverse wave is a moving wave that consists of oscillations occurring perpendicular (or right angled) to the direction of energy transfer. If a transverse wave is moving in the positive x-direction, its oscillations are in up and down directions that lie in the y–z plane. Light is an example of a transverse wave. For transverse waves in mat...
motion in which all points on a wave oscillate along paths at right angles to the direction of the wave`s advance. Surface ripples on water, seismic ... [8 related articles]
when a wave has the property that the particles of the wave move perpindicular to the motion of the wave itself, such as a water wave.
A wave in which the individual particles of a medium vibrate from side to side perpendicularly (transversely) to the direction in which the wave travels. Electromagnetic waves and water waves are examples of transverse waves.
wave characterized by a vector quantity perpendicular to the direction of propagationwave in which the direction of particle displacement at each point of the medium is parallel to the wavefronttransverse curvature giving rise to several arcs of alternating concavities NOTE - See figure 806-11.
<radiobiology> Waves in which the direction of the oscillation is perpendicular (transverse) to the direction of the wave propagation. ... Examples include plucked strings and electromagnetic waves in free space or air. ... (09 Oct 1997) ... 
one in which the oscillatory motion is perpendicular to the direction of propagation of the wave.
A wave in which the vibrations of the medium are perpendicular to thedirection the wave is moving.
Wave in which the displacement of the medium's particles, or in electromagnetic waves the direction of the electric and magnetic fields, is at right angles to the direction of travel of the wave motion. Various methods are used to reproduce waves, such as a ripple tank or a rope, in order to unde...