Wikipedia
In fluid dynamics, the wave height of a surface wave is the difference between the elevations of a crest and a neighbouring trough. Wave height is a term used by mariners, as well as in coastal, ocean and naval engineering.
At sea, the term significant wave height is used as a means to introduce a well-defined and standardized statistic to denote the characteristic height of the random waves in a sea state. It is defined in such a way that it more–or–less corresponds to what a mariner observes when estimating visually the average wave height.
Usage examples of "wave height".
Spectacular breakers but much less actual wave height until fairly far west along the coast.
You've got to factor in stuff like velocity, wave height and destructive force.
He figured wave height from trough to crest was less than a meter.
But the height of this one is impossible to anticipate because wave height is a function of the shoreline it hits.
The wave height averaged fourteen feet, but it seemed much more, the movement very violent, a vertical lift and fall that was like riding the National on a giant steeplechaser.
The hard shocks coming through the steering wheel indicated that the wave height was growing.
The large dark brown eyes had lost their usual soulful look as they strained intently through the tinted Plexiglas visor to read the sea conditions for changes in wind or wave height.