washing-up liquidˌwashing-ˈup ˌliquid noun [uncountable] British English a liquid soap for washing plates, knives etc用于清洗盘子、刀具等的液体洗洁精jabón líquido para lavar platos, cuchillos, etc.sabão líquido para lavar pratos, facas etc.皿やナイフなどを洗うための液体石鹸접시, 칼 등을 씻는 데 쓰는 액체 세제