aqua·​cise | \ˈa-kwə-ˌsīz, ˈä-\
variants: or less commonly Aquacise
plural aquacises also Aquacises

Definition of aquacise 

: exercise performed in water and especially in a pool of shallow water Aquacise—jogging or doing exercises in the pool—provides a lot of resistance for muscles, but no wear and tear on joints …— Joanne Lannin, Portland (Maine) Press Herald, 1 Jan. 1996

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First Known Use of aquacise

1970, in the meaning defined above

History and Etymology for aquacise

aqua- + (exer)cise

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Time Traveler for aquacise

The first known use of aquacise was in 1970

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obstinately defiant of authority

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