noun
Karlsbad salt
A type of medicinal salt derived from the Karlsbad (Karlovy Vary) hot springs, used historically as a laxative or health supplement.
カルルス泉塩は、かつて便秘薬として使われていた。
Karlsbad salt was once used as a laxative.
From German 'Karlsbader Salz', referring to the salt from the Karlsbad (Karlovy Vary) springs.