also: しろくりげ
noun
light chestnut (horse coat color)
Refers to a light chestnut coat color in horses, a specific equine color term.
あの馬は白栗毛の美しい毛並みをしている。
That horse has a beautiful light chestnut coat.
栗毛 is a general chestnut coat color, while 白栗毛 specifically refers to a lighter shade of chestnut.
Compound of 白 (しら/しろ, 'white') and 栗毛 (くりげ, 'chestnut coat'), literally 'white chestnut coat', describing a light chestnut horse color.