The water that is well below the surface but also well above the bottom(noun)
WordNet. Princeton University. 2010.
Use "mid-water" in a sentence
"I dropped to mid-water descending slowly towards the deep by inertia, at approximately 20 meters I saw a Seriola swimming slowly."
"It hangs there for a moment in mid-water, 6m from the bank, and then, with a kick of its tail, turns and follows the fly."
"And to not have, you know, double-blind shear rams on your blowout preventer that won't hit the tool joint, you know, so you can actually make it work, to have backup systems to actually engage the thing, to have something that will collect oil in the mid-water."