1. the measurement of the depth of bodies of water
Usage: oceanography; geography
2. the study of underwater topography and the depths of ocean floors, lake beds, and river bottoms
Usage: oceanography; geography

Examples

• The research vessel used sonar equipment to conduct bathymetry of the ocean floor.
• Bathymetry data revealed an underwater mountain range previously unknown to scientists.
• The lake’s bathymetry showed it was much deeper than originally thought.
• Modern bathymetry techniques use satellite technology and underwater robots.
• The bathymetry chart displayed the varying depths across the harbor.
• Scientists rely on bathymetry to understand underwater geological features.