1. the branch of geometry dealing with figures on the surface of a sphere
Usage: mathematics
2. atmospheric radio disturbances caused by lightning
Usage: meteorology; radio

Examples

• The navigation course included lessons on spherics for calculating distances on Earth’s surface.
• Spherics is essential for understanding how to plot courses on a globe.
• Radio operators must account for spherics when predicting signal quality.
• The study of spherics helps astronomers calculate positions of celestial bodies.
• Weather-related spherics can interfere with radio communications.
• Ancient mathematicians developed spherics to solve problems in astronomy.