n. 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·barine (-bärĭn, -īn, -bə-rīn′) adj. |
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