bathometry
/bæθɒmɛtri/Definitions
1. noun
The measurement of the depth of water or the study of the depth of the ocean
“The team conducted a thorough study of bathometry to better understand the seafloor topography.”
2. noun
The depth of the ocean or a body of water
“The extreme bathometry of the deep-sea trench made it difficult for the submersible to descend.”