Definition of in plaster
- Her arm is in plaster.
: a medicated or protective dressing that consists of a film (as of cloth or plastic) spread with a usually medicated substance
: a pasty composition (as of lime, water, and sand) that hardens on drying and is used for coating walls, ceilings, and partitions
: to overlay or cover with plaster : coat
: to apply a plaster to
: to cover over or conceal as if with a coat of plaster
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