cotton wool
noun🔊/ˌkɒtn ˈwʊl/
🔊/ˌkɑːtn ˈwʊl/
(British English) (US English (absorbent) cotton)
[uncountable]a soft mass of white material that is used for cleaning the skin or a wound 药棉;脱脂棉 cotton wool balls 药用棉球
Oxford Collocations DictionaryCotton wool is used before these nouns:- pad
