1) Afloat 2) Mobile 1) Like typhoid bacteria, often 2) Mobile 3) Supported by water 4) Transported by water 
Waterborne is a 2005 independent film by Indian American film maker Ben Rekhi about the fates of three different groups of people after a terrorist attack pollutes the water supply of Los Angeles, resulting in a severe water shortage. It stars Christopher Masterson, Ajay Naidu, Jake Muxworthy, Jon Gries, Christopher Berry, Shabana Azmi and Mageina...
disease is a disease spread by contaminated water. More Water definitions
[adj] - transported by water 2. [adj] - supported by water
adjective supported by water; `waterborne craft`