rackarock
Rack"a*rock`, n. [Rack to stretch, strain + a + rock.] Defn: A Sprengel explosive consisting of potassium chlorate and mono- nitrobenzene.
Rack"a*rock`, n. [Rack to stretch, strain + a + rock.] Defn: A Sprengel explosive consisting of potassium chlorate and mono- nitrobenzene.