mustard plaster

American  

noun

1. a black mixture of mustard and rubber placed on a cloth and applied to the skin as a counterirritant.

---

mustard plaster British  

noun

1. med a mixture of powdered black mustard seeds and an adhesive agent applied to the skin for its relaxing, stimulating, or counterirritant effects

---

Etymology

Origin of mustard plaster

First recorded in 1855–60

Example Sentences

For evening, models wore ethereal long silk plissé dresses in soft shades of mustard, plaster, or Dior gray.

From Seattle Times • Jul. 5, 2021

And taped over his liver, like a mustard plaster, is a wad of 80,000 yen.

From Time Magazine Archive

The most unique was a menu for a medical convention�printed on the back of a large mustard plaster.

From Time Magazine Archive

"My first two wives left me of their own accord." he burst out petulantly to Simone one day over a glass of port, "but this one sticks like mustard plaster."

From Time Magazine Archive

“But the artificial heat and mustard plaster that I had applied warmed his cold body and stimulated his nerves.”

From "Lincoln's Last Days: The Shocking Assassination that Changed America Forever" by Bill O'Reilly