WordNet sense 1 (any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs):

plaster of Paris

WordNet sense 2 (a medical dressing consisting of a soft heated mass of meal or clay that is spread on a cloth and applied to the skin to treat inflamed areas or improve circulation etc.):

poultice, cataplasm

WordNet sense 3 (a surface of hardened plaster (as on a wall or ceiling)):

plasterwork

WordNet sense 4 (adhesive tape used in dressing wounds):

adhesive plaster, sticking plaster

WordNet sense 5 (cover conspicuously or thickly, as by pasting something on):

beplaster

WordNet sense 6 (apply a heavy coat to):

plaster over

WordNet sense 7 (coat with plaster):

daub