noun🔗ShareStollenA horizontal or nearly horizontal passage from the surface into a mine, as contrasted with a shaft or vertical entry passage. An adit may be used for ventilation, haulage, drainage, or other purposes."The miners used the adit to bring fresh air into the deep mine. "Die Bergleute nutzten den Stollen, um frische Luft in die tiefe Mine zu bringen.geologyarchitectureindustrytechnicalbuildingChat with AIVocabulary GamePractice Reading