Last Updated：2025/11/28

A grade of oil used principally as a fuel. / Specifically, the heaviest commercial fuel that can be obtained from crude oil.

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fuel oil

Source Word

fuel oil

uncountable usually

Japanese Meaning

燃料として主に使用される石油分派、特に原油から得られる最も重い商業用燃料油。 / 重油

The old coastal power plant switched from coal to fuel oil to reduce soot and improve efficiency.

古い沿岸の発電所は、すすを減らし効率を高めるために石炭から重油に切り替えた。

Sense（1）

A grade of oil used principally as a fuel.

Sense（2）

Specifically, the heaviest commercial fuel that can be obtained from crude oil.

fuel oils

（ plural ）