aquacise /ˈækwə(ˌ)saɪz/noun 1verb 1forms 3 noun1 •A type of physical exercise practiced in water mostly vertically and without swimming, typically in a swimming pool in waist deep or deeper water. verb1 •(informal) To practice such exercise.She aquacised the hippos in the zoo's pond before feeding them. formsaquacised · aquacising · aquacises