- A solid preparation that can be spread when heated and that becomes adhesive at the temperature of the body; used to keep the edges of a wound in apposition, to protect raw surfaces, and, when medicated, to redden or blister the skin, as in mustard plaster, or to apply drugs to the surface to obtain their systemic effects.
- In dentistry, colloquialism for plaster of Paris.
[L. emplastrum; G. emplastron, plaster or mold]
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Examples: glitazone, GI cocktail, etc.