from
The Collaborative International Dictionary of English v.0.48
Roan \Roan\ (r[=o]n), 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.
[1913 Webster]
Give my roan a drench. --Shak.
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2. Made of the leather called roan; as, roan binding.
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{Roan antelope} (Zool.), 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}.
[1913 Webster]