arnica
noun /ˈɑːnɪkə/
/ˈɑːrnɪkə/
[uncountable]- a natural medicine made from a plant, also called arnica, used to treat bruises (= marks that appear on the skin after somebody has fallen, been hit, etc.)
山金车酊(用于治疗挫伤等的天然药物) 词源mid 18th cent.: modern Latin, of unknown origin.