shiatsu Syllabification: (shi·at·su)Pronunciation: /SHēˈätso͞o/Definition of shiatsu noun a form of therapy of Japanese origin based on the same principles as acupuncture, in which pressure is applied to certain points on the body using the hands. Origin: 1960s: Japanese, literally 'finger pressure'shiatsu in other Oxford dictionaries Definition of shiatsu in the British & World English dictionary