#1 cinnabar n. a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury. wn
#2 cinnabar s. [vermilion, vermillion, Chinese-red] of a vivid red to reddish-orange color. wn
#3 cinnabar n. [cinnabar moth, Callimorpha jacobeae] large red-and-black European moth; larvae feed on leaves of ragwort; introduced into United States to control ragwort. wn
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