SUBAQUATIC

subaquatic|subaqueous. Subaquatic, or Subaqueous, a. being under water

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{ Sub′a‐quat″ic (?), Sub‐a″que‐ous (?), } a. 1. 1. Being under water, or beneath the surface of water; adapted for use under water; submarine; as, a subaqueous helmet.
2. 2. (Geol.) Formed in or under water; as, subaqueous deposits.