'Submerse' definitions:

Definition of 'submerse'

From: WordNet
verb
Sink below the surface; go under or as if under water [syn: submerge, submerse]
verb
Put under water; "submerge your head completely" [syn: submerge, submerse]

Definition of 'Submerse'

From: GCIDE
  • Submerse \Sub*merse"\, a. (Bot.) Submersed. [1913 Webster]