You searched for: “subaquatic
subaquatic (adjective), more subaquatic, most subaquatic
1. Living or growing partly on land and partly in water: "A marginal subaquatic flora."
2. Growing or remaining under water.
3. Being under water, or beneath the surface of water; adapted for use under water; such as, a submarine or a subaqueous helmet.
4. Formed in or under water; such as, "subaqueous deposits".
5. The practice of going underwater with or without a breathing apparatus.

When done for sport, this is sometimes called subaquatics. There are different kinds of underwater diving.

  • Snorkeling and free diving: swimming underwater without a breathing apparatus. An apparatus used by swimmers and skin divers, consisting of a long tube held in the mouth.
  • Scuba diving and surface supplied diving: swimming or walking underwater with a breathing apparatus.