spherics

n.

球面几何学，球面三角学；

Spherics
Testing and fabrication of biaspherics (A)
The Relation of Greek Spherics to Early Greek Astronomy
The simulation study of spherics and red sprite phenomenon produced by lightning
[Radioactivity, electrical and magnetic fields, Spherics]. [German]
The Role of Geometrical Construction in Theodosius’s Spherics
Semi-Ductile Grinding and Polishing of Ophthalmic Aspherics and Spherics*
Lightning Location With Single-Station Observation of VLF Spherics
Computer and communications systems employing universal direct spherics processing architectures
The significance of meteoric ionisation for the propagation of lightning spherics in the atmosphere of Titan