鉱こう石せき車ぐるまMeanings1nounmine car; mine wagonrare termRare term for a small rail vehicle used to transport ore in a mine. The more common synonym is 鉱車 (こうしゃ).See also: 鉱車鉱こう石せき車ぐるまは坑こう道どうで鉱こう石せきを運はこぶのに使つかわれた。Mine cars were used to transport ore in the mine tunnels.