Pinite \Pi"nite\, n. [L. pinus the pine tree.] 1. (Paleon.) Any fossil wood which exhibits traces of having belonged to the Pine family. [1913 Webster] 2. (Chem.) A sweet white crystalline substance extracted from the gum of a species of pine ({Pinus Lambertina}). It is isomeric with, and resembles, quercite. [1913 Webster]