Designating a plant or animal which lives in or on the water. Now somewhat rare.

= subaquatic, adj. 1.

Situated, occurring, or performed underwater; = subaqueous, adj. 1a.

Of or pertaining to water as a habitat or resort; esp. of plants and animals: Living or growing in or near water.

Plunged down, immersed. In Botany (representing Latin dēmersus): Growing beneath the water, submerged.

= limnetic, adj.

Of a succession of plant communities: having its origin in a watery habitat.