Cin"na*bar (?), n. [L. cinnabaris, Gr. ; prob. of Oriental origin; cf. Per. qinbar, Hind. shangarf.]
Red sulphide of mercury, occurring in brilliant red crystals, and also in red or brown amorphous masses. It is used in medicine.
The artificial red sulphide of mercury used as a pigment; vermilion.
Cinnabar Graecorum (). [L. Graecorum, gen. pl., of the Greeks.] Med. Same as Dragon's blood. -- Green cinnabar, a green pigment consisting of the oxides of cobalt and zinc subjected to the action of fire. -- Hepatic cinnabar Min., an impure cinnabar of a liver-brown color and submetallic luster.
© Webster 1913.