Noun: mustard plaster 'mús-tu(r)d 'plã-stu(r)
- A plaster containing powdered black mustard; applied to the skin as a counterirritant or rubefacient
"Grandma applied a mustard plaster to relieve his chest congestion";
- sinapism
Derived forms: mustard plasters
Type of: cataplasm [archaic], plaster, poultice
Encyclopedia: Mustard plaster