noun
Geological term for a coastal opening through which seawater is forcefully ejected by wave pressure.
この海岸には潮吹き穴がいくつかある。
There are several blowholes along this coast.
Compound of 潮 (shio, 'tide') + 吹き (fuki, continuative form of 吹く fuku, 'to blow') + 穴 (ana, 'hole').