gyprockEtymologyBlend of gypsum + rock.nounRock rich in gypsum; gypsic soil.“Some high quality white or variously tinted fine-grained gyprocks, usually referred to as alabaster, were used as interior facing stones and for small statues and carved decorative objects found in Egyptian pyramids”Drywall.“Cinder blocks were more durable, however, and soon gypsum was redirected for “gyprock” drywall, a wallboard...”verbTo drywall.