noun
iron spring; chalybeate spring
A hot spring with a high iron content, often recognized for its reddish-brown water and health benefits.
この温泉は鉄泉で、湯の色が赤茶けている。
This hot spring is an iron spring, and the water has a reddish-brown color.
鉄泉は貧血に効くと言われている。
Iron springs are said to be good for anemia.