English

Definition of soap powder noun from the Oxford Advanced Learner's Dictionary

 

soap powder

 noun
noun
BrE BrE//ˈsəʊp paʊdə(r)//
 
; NAmE NAmE//ˈsoʊp paʊdər//
 
[uncountable, countable] (British English)
 
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a powder made from soap and other substances that you use for washing your clothes, especially in a machine