very small pieces of dead skin, seen as a white dust in a person’s hair 头皮屑 a dandruff shampoo 头皮屑洗发水
Oxford Collocations DictionaryDandruff is used before these nouns:- shampoo
Word Originmid 16th cent.: the first element is unknown; the second (-ruff) is perhaps related to Middle English rove ‘quality of being flaky’.