SUBMERSED
subaqueous, subaquatic, submerged, submersed, underwater
(adjective) growing or remaining under water; “viewing subaqueous fauna from a glass-bottomed boat”; “submerged leaves”
submerged, submersed, underwater
(adjective) beneath the surface of the water; “submerged rocks”
Source: WordNet® 3.1
Verb
submersed
simple past tense and past participle of submerse
Source: Wiktionary
Sub*mersed", a. Etym: [L. submersus, p.p. of submergere. See
Submerge.]
Definition: Being or growing under water, as the leaves of aquatic plants.
SUBMERSE
Sub*merse", a. (Bot.)
Definition: Submersed.
Source: Webster’s Unabridged Dictionary 1913 Edition