an excessive love of water. -Ologies & -Isms.
What is the meaning of Hydromania?
hydromania in British English
(ˌhaɪdrəʊˈmeɪnɪə) an excessive craving or love for water. Collins English Dictionary.
Is there such thing as a Hydromaniac?
A morbid craving for water. A morbid propensity to suicide by drowning.