Colophony is a term that refers to a natural resin obtained from pine trees and other coniferous plants. It is also known as rosin and is used in various applications, including in varnishes, inks, and as a grip enhancer for musicians and performers. Colophony is characterized by its brittle texture and is typically amber in color. In a broader sense, the term can also refer to the resinous substance itself or to the traditional use of such substances in historical contexts.