From Longman Dictionary of Contemporary Englishfeather boaˌfeather ˈboa noun [countable] DCCa long scarf made of feathers and worn around a woman’s neck
Examples from the Corpus
feather boa• 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.• A black feather boa, perhaps bought for the Black Ascot, curved lavishly round to cancel any suggestion of nakedness.• Lucy laughing, smoking, Lucy with Jamie's feather boa round her shoulders, Lucy who had kissed her. 