1. the shape or outline of an object as viewed from above, especially of an aircraft wing or similar structure
Usage: technical; aviation

Examples

• The engineer studied various wing planforms to optimize aerodynamic performance.
• Delta planforms are commonly used in supersonic aircraft design.
• The aircraft’s planform was carefully designed to reduce drag.
• Different planforms produce varying lift characteristics.
• The swept planform helps delay the onset of shock waves.
• Rectangular planforms are simpler to manufacture but less efficient at high speeds.