Aquanauts... Yes. No. Maybe?

As a descriptive title for a SCUBA diver, I've always wanted to use the term aquanaut. You know. As opposed to diver and all its derivations: SCUBA diver, deep sea diver, lake diver, shore diver, boat diver, etc. Mainly I dislike diver because, on its own, it does not refer to SCUBA diving. Aquanaut has a nice ring to it, and it directly refers to the water. Diver requires the aid of other words to properly specify what we are, and more often than not that extra word will be an acronym. So, technically, when you say "I'm a SCUBA diver," if we weren't using a short hand, you just said "I'm a self contained underwater breathing apparatus diver."

"I'm a diver."

"Oh really. Like a dumpster diver, oyster or pearl diver, sky diver, or someone who likes to fake a fall in soccer?"

"No, a SCUBA diver."

"Oh, of course. Sure, I should have got that."

An uncommon scenario to be sure, but still readily understandable. The problem with aquanaut is that there seems to be some disagreement on what it means.

According to Wikipedia (not an academic source, I know, but good enough for this point):
"An Aquanaut is any individual who remains underwater, exposed to the ambient pressure, long enough to come into equilibrium with his or her breathing media. Usually this is done in an underwater habitat on the seafloor for a period equal to or greater than 24 continuous hours without returning to the surface."

A basic internet search for aquanaut brings up mostly SCUBA diving pages, but it also brings up yachting pages. And, online dictionaries include everything from skin divers, snorkelers, SCUBA divers, surfers, underwater workers, to anyone who lives in an underwater installation or habitat for short or long periods. However, they mostly emphasize the living underwater aspect. 

Etymologically, aquanaut means water-sailor; likewise, astronaut means star-sailor.

So I look at it this way. We call people who go into (emphasis on the "into") space astronauts; technically there is a height qualifier, so the equivalent would imply some depth -- excluding the exploits that take place on the surface of the water. They do so using SCBAs just like SCUBA divers. They experience weightlessness, and SCUBA divers experience the next closest sensation. They have the ability to move in any direction -- the full X,Y,Z spectrum, up, down, left, right, forward, backward -- and they're not required to stay at the ISS to receive the title astronaut. Of all the activities falling under the term aquanaut, I'd say SCUBA divers are really the only qualifiers. If said SCUBA diver happens to stay in an underwater habitat, then so be it. That does not disqualify other SCUBA divers. 

Thoughts?