waterworld

plural waterworlds

1. A planet or other large environment that is dominated by water.

   The rest of Pampanga (except the towns around Mt. Arayat and those near Bulacan) is a waterworld during the rainy season.

   2020, Jorge V. Aruta, Ruel S. De Vera, Ma. Ceres P. Doyo, Young Blood Omnibus Volume One

   1 more example

   While fire is impossible on a waterworld, electronic circuits may not be. Electric eels, for example, demonstrate that electric circuits are possible in a salty aqueous environment, though it would not be an easy task.

   2020, Guillermo Gonzalez, Jay W. Richards, The Privileged Planet, page 363