from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The area between the ocean's surface and the seabed.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun That part of the
Earth, or other planet, that lie below the surfaceof its lakes, seasand oceans
Sorry, no etymologies found.
And you have to hydrospace, shoot through hydrospace and you never know where you're going to come back.
Work ranges from surveying and engineering in tidal and coastal areas to geomagnetic and hydrospace seismological observations.
Discover What You’re Best At Linda Gale 1998