LEARNit Dictionary
washing soda
noun
/ˈwɒʃɪŋ səʊdə/
UK
/ˈwɑːʃɪŋ səʊdə/
US
1
a chemical in the form of white crystals or powder that dissolves(= turns to liquid when mixed with another liquid) and is used in making glass, soap and paper, and for making water soft
کربنات سدیم, سودای شستشو