also: さんかくは
choppy sea; chopping waves
Describes a sea surface with short, steep, triangular-shaped waves, often caused by wind against current.
After the typhoon, there were choppy waves outside the harbor.
triangle wave
Only with reading さんかくは
Technical term in physics and signal processing for a periodic waveform with a triangular shape.
The triangle wave is one of the fundamental waveforms along with sine and square waves.