1. relating to the mapping, charting, or scientific study of bodies of water, including their physical features, depths, and currents
Usage: technical; commonly used in nautical and oceanographic contexts
2. of or relating to hydrography, the branch of geography dealing with water systems and their characteristics
Usage: technical; academic

Examples

• The hydrographic survey provided detailed information about the harbor's depth and underwater obstacles.
• Hydrographic charts are essential tools for ship navigation in coastal waters.
• The research team conducted a hydrographic study of the river to understand its flow patterns.
• Modern hydrographic technology uses sonar to map the ocean floor with great precision.
• Hydrographic data helps predict tidal movements and ocean currents.
• The captain consulted the hydrographic map before entering the narrow strait.