† alˈchitrean,a.Obs.rare—1. [f.med.L. alchitre-usadj.f.alchitrum(seeprec.) + -an.] Of or pertaining to the resin of the Pine. 1560P. Whitehorne Ord. Sould. (1588) 46 For to make them [fireworks], there must be taken Rosen Alchitrean, quicke Brimstone, etc.