Noun
thistledown (usually uncountable, plural thistledowns)
The soft, feathery pappus attached to the seeds of a thistle.
Irap, No. 2, roars down the Thistledown stretch to capture Saturday's $500,000 Ohio Derby by a nose over the favored Girvin. Source: Internet
"We don't mess around when it comes to safety," said retired Thistledown riding champion Junior Rivera, who represents riders as a regional manager for the Jockeys' Guild. Source: Internet
Thistledown Farm now encompasses 640 acres. Source: Internet