音标：['θisldaun]
n. 蓟花的冠毛
在线英汉词典

thistledown的短语、例句：

thistledown n [U] light fluff that contains thistle seeds and is blown from thistle plants by the wind 蓟种子冠毛
as light as thistledown 轻如蓟的冠毛.