from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A medicinal plaster made with a pastelike mixture of powdered black mustard, flour, and water, used especially as a counterirritant. Also called sinapism.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a plaster containing powdered black mustard; applied to the skin as a counterirritant or rubefacient
Sorry, no etymologies found.
Page 72 altogether, this morning Mother sent for a physician, he came said the calomel that Father took early this morning by Mr. Duvall's advice was quite right, prescribed more calomel and a mustard plaster and would return this evening, he has just left, says that Father will be able to travel by twelve o'clock tomorrow provided inflammation did not take place, as yet there is no symptom of it.