\Roan\, a. [F. rouan; cf. Sp. roano, ruano, It. rovano,
roano.]
1. Having a bay, chestnut, brown, or black color, with gray
   or white thickly interspersed; -- said of a horse.
         Give my roan a drench.                --Shak.
2. Made of the leather called roan; as, roan binding.
{Roan antelope} (Zo["o]l.), a very large South African
   antelope ({Hippotragus equinus}). It has long sharp horns
   and a stiff bright brown mane. Called also {mahnya},
   {equine antelope}, and {bastard gemsbok}.

\Roan\, n.
1. The color of a roan horse; a roan color.
2. A roan horse.
3. A kind of leather used for slippers, bookbinding, etc.,
   made from sheepskin, tanned with sumac and colored to
   imitate ungrained morocco. --DeColange.
{Roan tree}. (Bot.) See {Rowan tree}.