element

Rosin

Elements

Hard resin left after turpentine is driven off. Not resin as the soft tree gum alone, and not pitch as a dark tar.

Also known as Colophony

  • Rosin is used in Medicine.

    Dioscorides’ De Materia Medica treats hard resinous pine products among drug bases beside softer resins. First-century pharmacological use of rosin, not pitch as cooked tar and not the bare resin class alone.

    from Pedanius Dioscorides · De Materia Medica, 1st century CE

    used in · sourced · documented

sources