IPA: /ˈsɪnəˌpɪzəm/
KK: /sɪˈnæpɪzəm/
A type of medical treatment that involves applying a mustard plaster to the skin to create a warming effect and relieve pain or congestion.
The doctor recommended a sinapism to help with the patient's chest congestion.
Sinapism is derived from "sinapis" (meaning mustard) in Latin, which refers to the use of mustard as a medicinal plaster. The suffix "-ism" (meaning a practice or condition) indicates a method or practice related to mustard. Thus, sinapism refers to the practice of using mustard plasters for therapeutic purposes.
Think of 'mustard' ('sinapis') being used as a 'practice' ('-ism') for healing — that's why sinapism means using mustard for medicinal purposes.