Wiktionary
a. beneath the surface of the ocean.
WordNet
adj. formed or situated or occurring beneath the ocean or the ocean bed; "suboceanic oil resources" [syn: subocean]
Usage examples of "suboceanic".
Now he is a businessman, running a suboceanic mining operation whose profits depend on his obtaining Diamalan assistance.
SAA stood for a Suboceanic Acoustic Array, a relic of the Cold War now used by oceanographers worldwide to listen for whales.
There may have been a climatic change that killed off most and drove the few remaining into a subterranean and suboceanic existence.
Helios has gotten the jump on everyone else in suboceanic exploration and development.
The Despacho Fracture Zone had shrugged, and a web of minor faults in the suboceanic basalt had waggled in sympathy.
They twisted like an undersea plant in a suboceanic current, waving and wavering, shifting and combining, straining mightily.