coal oil

countable regional uncountable

(regional) kerosene or any unspecified lower grade derivative of crude petroleum

Japanese Meaning

灯油 / 未精製または低品質な原油由来の油（粗製油）

He refilled the lantern with coal oil before setting out on the night watch.

彼は夜の見張りに出る前にランタンに灯油を注いだ。

Sense（1）

(regional) kerosene or any unspecified lower grade derivative of crude petroleum

coal oils

（ plural ）