Wiktionary
aquanauts
n. (plural of aquanaut English)
Usage examples of "aquanauts".
Although they encountered many creatures that had not been seen before, the limits of visibility and the fact that neither of the intrepid aquanauts was a trained oceanographer meant they often weren’t able to describe their findings in the kind of detail that real scientists craved.
If the foolhardy aquanauts had happened to put to sea again from the island they had landed on by chance, they would have got further and further away from their home port.
Dolphins have been trained to carry tools to "aquanauts" submerged off the coast of California, and to ward off sharks who approach the work zone.