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.
2.
The state of being put under water or other fluid, or of being overflowed or drowned.
© Webster 1913.