Definition of steradian in English:
The SI unit of solid angle, equal to the angle at the centre of a sphere subtended by a part of the surface equal in area to the square of the radius.
- A sphere subtends 4 pi square radians (steradians) about the origin.
- There are also two supplementary units, the radian, and the steradian.
- This is the power of the light that is emitted per projected surface area into a given solid angle, and it is measured in watts per square metre per steradian.
Words that rhyme with steradianAcadian, Akkadian, Arcadian, Barbadian, Canadian, circadian, Grenadian, Hadean, Orcadian, Palladian, radian
Definition of steradian in:
- US English dictionary
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