shadow roll

American  

noun

1. sheepskin that is placed just below the eyes of a pacing horse in order to prevent it from seeing moving shadows cast by its body.

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Example Sentences

So even the parade to the post belonged to Silky, his red coat gleaming through the muggy afternoon, a red shadow roll across his nose and a red ribbon braided into his tail.

From Time Magazine Archive

Candace stood still a moment, and the spectators saw a deeper shadow roll over her sable face, like a cloud over a dark pool of water, and her immense person heaved with her labored breathing.

From Project Gutenberg