aquaphilia UK /ˌækwɐˈfɪliə/US /ˌækwəˈfɪliə/ noun3 •The biological and societal attraction to water. •A sexual attraction to general imagery of people in water, sexual acts in water, or watery environments.aquaphilia, n. sexual fetish involving water or swimming; American The Sports Illustrated Swimsuit Edition is my favorite — I love those underwater aquaphilia shots. — 2010 •A compulsive desire for water.Lunacol was developed for the treatment of the astronauts' syndrome, luneurosis, a compulsive desire for water, or aquaphilia, and a wish to swim like a fish. — 1963