Last Updated：2025/12/05

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(rail transport, usually in the plural) One of the two rails of a railway track with which the wheels of a train make contact. / (horse racing) A fence which marks the inside edge of a racecourse.

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running rail

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Source Word

running rail

Noun

plural-normally

(rail transport, usually in the plural) One of the two rails of a railway track with which the wheels of a train make contact. / (horse racing) A fence which marks the inside edge of a racecourse.

Japanese Meaning

鉄道の線路を構成する二本のレールのうち、列車の車輪が接触する方のレール。 / 競馬において、レースコースの内側（内側エッジ）を示す柵。