The Collaborative International Dictionary of English v.0.48:

Dracin \Dra"cin\, n. [Cf. F. dracine.] (Chem.)
   See Draconin.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Draconin \Dra*co"nin\, n. [Cf. F. draconine. See Draco.]
   (Chem.)
   A red resin forming the essential basis of dragon's blood; --
   called also dracin.
   [1913 Webster]