1. having or formed by two plane surfaces meeting at an angle
Usage: geometry; mathematics

1. the angle between two intersecting planes
Usage: geometry; mathematics
2. an aircraft wing configuration where the wings are angled upward from the fuselage
Usage: aviation

Examples

• The crystal has a dihedral structure with two flat faces meeting at a sharp edge.
• Students calculated the dihedral angle between the two intersecting planes.
• The dihedral of 120 degrees was measured using a protractor.
• Most commercial aircraft have a slight dihedral to improve stability.
• The glider’s wings showed positive dihedral for better flight control.
• Engineers adjusted the dihedral angle to optimize the plane’s performance.
• The dihedral configuration helps the aircraft return to level flight automatically.