'Submersion' definitions:

Definition of 'submersion'

From: WordNet
noun
Sinking until covered completely with water [syn: submergence, submerging, submersion, immersion]
noun
The act of wetting something by submerging it [syn: submersion, immersion, ducking, dousing]

Definition of 'Submersion'

From: GCIDE
  • Submersion \Sub*mer"sion\, n. [L. submersio: cf. F. submersion.]
  • 1. The act of submerging, or putting under water or other fluid, or of causing to be overflowed; the act of plunging under water, or of drowning. [1913 Webster]
  • 2. The state of being put under water or other fluid, or of being overflowed or drowned. [1913 Webster]