CHRYSOPHANIC a.
crystalline substance extracted from rhubarb, yellow dock, sienna, chrysarobin, etc., and shown to be a derivative of an anthracene. It is used in the treatment of skin diseases; -- called also rhein, rheic acid, rhubarbarin, etc.
DUMB a.
ambo. See under crambo. -- Dumb show. (a) Formerly, a part of a dramatic representation, shown in pantomime. "Inexplicable dumb shows and noise." Shak. (b) Signs and gestures without words; as, to tell a story in dumb show. -- To strike dumb, to confound; to astonish; to render silent by astonishment; or, it may be,…