noun, noun which may take the genitive case particle 'no'
Refers specifically to the reddish-brown coat color of a horse, often with a matching or lighter mane and tail. Used as a noun or with の to modify another noun (e.g., 栗毛の馬).
あの栗毛の馬はとても美しい。
That chestnut horse is very beautiful.
彼は栗毛の競走馬を育てている。
He raises chestnut racehorses.