solid angle

solid angle

n.

An angle formed by three or more planes intersecting at a common point.

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solid angle

n

(Mathematics) a geometric surface consisting of lines originating from a common point (the vertex) and passing through a closed curve or polygon: measured in steradians

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solid angle

A three-dimensional angle, formed by three or more planes intersecting at a common point. Its magnitude is measured in steradians, a unitless measure. The corner of a room forms a solid angle, as does the apex of a cone; one can imagine an indefinite number of planes forming the smooth round surface of the cone all intersecting at the apex. Solid angles are commonly used in photometry.

Thesaurus

Noun

1.

solid angle - an angle formed by three or more planes intersecting at a common point (the vertex) angle - the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians