What is another word for water column?
Pronunciation: [wˈɔːtə kˈɒlʌm] (IPA) 
The water column is a term used to describe the vertical section of water in a body of water or in an ocean, which can range from the surface to the bottom of the ocean floor. Some synonyms for the water column may include the oceanic column, aqua column, marine column, or aquatic column. Other related terms that can be used to describe the water column include the water depth, water mass, or hydrographic column. The water column is an important part of the ocean ecosystem and plays a vital role in regulating temperature, circulation, and other important oceanic processes.
