noun
- a pasty mixture, as of lime or gypsum, sand, and water, which hardens on drying, for coating walls, ceilings, and partitions
- plaster of Paris
- a pasty preparation spread on cloth and applied to the body, used medicinally as a curative or counterirritant
Origin:
ME < OE plaster & OFr plastre, both < LL plastrum, for L emplastrum < Gr emplastron, plaster < emplassein, to daub over < en, on, in + plassein, to form: see plastic