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1. A heavy reddish mercuric sulfide, HgS, that is the principal ore of mercury.
2. See mercuric sulfide.
3. See vermilion.
[Middle English cinabare, from Latin cinnabaris, from Greek kinnabari.]
cin′na·bar′ine (-bär′ĭn, -īn, -bə-rīn′) adj.
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