Look up an image:
Explore by theme
wave ![click to hear : wave click to hear : wave](../../images/speaker-vert.gif)
Undulation caused by the wind on the surface of a sea or lake.
wave base ![click to hear : wave base click to hear : wave base](../../images/speaker-vert.gif)
Maximum depth beneath which wave action is no longer perceptible.
still water level ![click to hear : still water level click to hear : still water level](../../images/speaker-vert.gif)
Level of the water surface in the absence of waves.
trough ![click to hear : trough click to hear : trough](../../images/speaker-vert.gif)
Lowest point of the wave.
sand bar ![click to hear : sand bar click to hear : sand bar](../../images/speaker-vert.gif)
Accumulation of sediment at the bottom of the sea, close to the shoreline; it is sometimes exposed at low tide.
foam ![click to hear : foam click to hear : foam](../../images/speaker-vert.gif)
Whitish froth that forms on the water surface when a wave breaks.
shore ![click to hear : shore click to hear : shore](../../images/speaker-vert.gif)
Strip of land where the sea meets the land.
breaker ![click to hear : breaker click to hear : breaker](../../images/speaker-vert.gif)
High wave that breaks on the coast.
wave length ![click to hear : wave length click to hear : wave length](../../images/speaker-vert.gif)
Horizontal distance between two successive crests or troughs.
crest ![click to hear : crest click to hear : crest](../../images/speaker-vert.gif)
The highest point of a wave.
wave height ![click to hear : wave height click to hear : wave height](../../images/speaker-vert.gif)
Vertical distance between the crest and the trough.