1. relating to or connecting points that experience high tide at the same time
Usage: oceanography; technical

Examples

• The cotidal lines on the map show areas where high tide occurs simultaneously.
• Scientists use cotidal charts to predict tidal patterns across the ocean.
• The cotidal map revealed that both coastal cities experience high tide at 3 PM.
• Cotidal analysis helps mariners understand regional tidal variations.
• The research team studied cotidal relationships between different harbor locations.