炭たん酸さん泉せんたんさんせんFreq.FrequencyTop 100,000Meanings1nouncarbonated spring; soda springA natural spring with naturally carbonated water, or a facility using such water. Often found in onsen contexts.この温おん泉せんは炭たん酸さん泉せんで、肌はだがすべすべになる。