bathymetry
noun
- study of underwater depth of lake or ocean floors
Wiktionary
Pronunciation: /bəˈθɪm.ə.tɹi/
noun
Etymology: From bathy- + -metry.
- The measurement of the depths of the seas and oceans.
Pronunciation: /bəˈθɪm.ə.tɹi/
Etymology: From bathy- + -metry.