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spherical British & World English

Shaped like a sphere

spherical English Thesaurus

the electric light bulb hung in a spherical Japanese lantern

spherical angle British & World English

An angle formed by the intersection of two great circles of a sphere

spherical triangle British & World English

A triangle formed by three arcs of great circles on a sphere

spherical aberration British & World English

A loss of definition in the image arising from the surface geometry of a spherical mirror or lens

spherical coordinates British & World English

Three coordinates that define the location of a point in three-dimensional space. They are the length of its radius vector r, the angle θ between the vertical plane containing this vector and the x-axis, and the angle φ between this vector and the horizontal x-y plane

spherical trigonometry British & World English

The branch of trigonometry concerned with the measurement of the angles and sides of spherical triangles

spherical polar coordinates in spherical coordinates British & World English

Three coordinates that define the location of a point in three-dimensional space. They are the length of its radius vector r, the angle θ between the vertical plane containing this vector and the x-axis, and the angle φ between this vector and the horizontal x-y plane