›a liquid soap used for washing the hair, or the act of washing the hair with this liquid: [U]a bottle of shampoo[C]The dog needs a shampoo.›A shampoo is also a liquid used to clean certain thick materials: [C]a rug shampooshampoo
/ʃæmˈpu/v[T](present tenseshampoos, present participleshampooing, past tense and past participleshampooed)›He took a shower and shampooed his hair.