taurocol
/ˌtɔːrəˈkɒl/ or /ˌtaʊərəˈkɒl/Definitions
1. noun
A medicine or ointment containing bull or ox gall, used in the past as a treatment for eye diseases, particularly for removing opacities and for treating inflammation of the eye.
“The 19th-century doctor applied taurocol to her patient’s inflamed eye to speed up the healing process.”