noun
acidic spring
A hot spring with acidic water, often used in geological or spa contexts.
この地域には酸性泉が多く、肌に刺激を感じることもある。
There are many acidic springs in this area, and they can sometimes irritate the skin.
温泉 is a general term for hot springs, while 酸性泉 specifically refers to those with acidic water.
Compound of 酸性 (acidity) and 泉 (spring).