of or carried on in waters of great depth
binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
the part of the earth's surface covered with water (such as a river or lake or ocean)
having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination
having or denoting a low vocal or instrumental range
