darkroomEnglishMerriam-Webster Dictionarydarkroom noundark·room | \ ˈdärk-ˌrüm , -ˌru̇m \ a room with no light or with a safelight for developing light-sensitive photographic materials Definition : a room with no light or with a safelight for developing light-sensitive photographic materialsFirst Known Use1841, in the meaning defined abovedarkroom noundark·room | \ ˈdärk-ˌrüm , -ˌru̇m \ a room with no light or with a safelight for developing light-sensitive photographic materials Definition : a room with no light or with a safelight for developing light-sensitive photographic materialsFirst Known Use1841, in the meaning defined above