noun
maritime insurance; marine insurance
Insurance covering loss or damage of ships, cargo, and related interests during sea transport.
輸出貨物には海上保険をかける必要がある。
It is necessary to take out maritime insurance on export cargo.
損害保険 is a broader category of non-life insurance covering various types of property and casualty risks, while 海上保険 specifically covers maritime-related risks.
Compound of 海上 (maritime) and 保険 (insurance).