IPA: //ʃæmˈpuːər//
KK: /ʃæmˈpuːər/
A device or person that cleans hair or carpets using shampoo.
The shampooer made the carpet look brand new after the cleaning.
Shampooer → It is formed from 'shampoo' (from Hindi 'chāmpo', meaning to press or massage) and '-er' (meaning a person who). A shampooer is a person who massages or cleans hair with shampoo.
Think of someone who 'presses' or 'massages' ('chāmpo') hair with shampoo — that's what a shampooer does.