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  Steradian
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| appearance as argument number 1 |
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| (instance Steradian UnitOfAngularMeasure) | Merge.kif 6940-6940 | Steradian is an instance of unit of angular measure |
| (instance Steradian SystemeInternationalUnit) | Merge.kif 6941-6941 | Steradian is an instance of systeme international unit |
| (documentation Steradian EnglishLanguage "SI solid angle measure. Symbol: sr. It is the solid angle of a sphere subtended by a portion of the surface whose area is equal to the square of the sphere's radius. Another definition is: the solid angle which, having its vertex in the center of the sphere, cuts off an area of the surface of the sphere equal to that of a square with sides of length equal to the radius of the sphere. Steradian = m^2/ m^2 = 1.") | Merge.kif 6943-6949 | Steradian is an instance of systeme international unit |
| appearance as argument number 2 |
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