thistledown

[ this-uh l-doun ]
/ ˈθɪs əlˌdaʊn /

noun

the mature, silky pappus of a thistle.

Origin of thistledown

First recorded in 1555–65; thistle + down2

Example sentences from the Web for thistledown

British Dictionary definitions for thistledown

thistledown
/ (ˈθɪsəlˌdaʊn) /

noun

the mass of feathery plumed seeds produced by a thistle
anything resembling this