aquatic aquatic /əˈkwætɪk/

adjective

1. Operating, living or growing in water  ( aquatic )
   operating, living or growing in water
    Boats are aquatic vehicles
   boats are aquatic vehicles
    Water lilies are aquatic plants
   water lilies are aquatic plants
    Fish are aquatic animals
   fish are aquatic animals
   
2. Relating to or consisting of or being in water  ( aquatic )
   relating to or consisting of or being in water
    An aquatic environment
   an aquatic environment
   

noun

1. A plant that lives in or on water  ( aquatic )
   a plant that lives in or on water
    The lotus is an aquatic plant that thrives in ponds and slow-moving water bodies.
   The lotus is an aquatic plant that thrives in ponds and slow-moving water bodies.