炭たん酸さん泉せん

noun

carbonated spring; soda spring

A 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。

  This hot spring is a carbonated spring, and it makes your skin smooth.