Longman Dictionary of Contemporary English
feather boa
noun
EXAMPLES FROM CORPUS
▪ A black feather boa, perhaps bought for the Black Ascot, curved lavishly round to cancel any suggestion of nakedness.
▪ Better yet, Rodman in a feather boa, running anchor for the women.
▪ Diana Ross sauntered down the catwalk this season wearing little more than a feather boa and a smile.
▪ Lucy laughing, smoking, Lucy with Jamie's feather boa round her shoulders, Lucy who had kissed her.
Wiktionary
feather boa
n. A decorative scarf made out of feathers.
WordNet
feather boa
n. a long thin fluffy scarf of feathers or fur [syn: boa]
Wikipedia
Feather boa
A feather boa is a fashion accessory that is usually worn wrapped around the neck like a scarf.