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Solid angle

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Definition of the noun solid angle

What does solid angle mean as a name of something?


  1. an angle formed by three or more planes intersecting at a common point (the vertex)
    • lexical domain: Shapes - nouns denoting two and three dimensional shapes
    • more generic word: angle = the space between two lines or planes that intersect; the inclination of one line to another

Alternative definition of the noun solid angle


  1. [geometry] The three-dimensional analog of an angle, equivalent to the area of that portion of the surface a unit sphere that it subtends.


Solid Angle is a software developing company that develops the Arnold renderer.


Solid angle: In geometry, a solid angle is the two-dimensional angle in three-dimensional space that an object subtends at a point. It is a measure of how large the object appears to an observer looking from that point. In the International System of Units, a solid angle is expressed in a dimensionless unit called a steradian.

  • also known as 立體角

Printed dictionaries and other books with definitions for Solid angle

Click on a title to look inside that book (if available):

Google previewEncyclopedia of Optical Engineering: Pho-Z, pages 2049-3050 (2003)

by Ronald G. Driggers

Projected angle and projected solid angle of a right circular cone. 3. Observer and projected solid angle using a right circular cone.) For 0 < II °, Q w <o (the error < 1%). Photon Quantities L projected J 0 ...

Google previewThe American Heritage Science Dictionary (2005)

by American Heritage Dictionary

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 ...

Google previewIllustrated Dictionary of Practical Astronomy (2012)

by C. R. Kitchin

A solid angle is similarly defined as ...

Google previewThe Mathematics Dictionary (1992)

by R.C. James, Glenn James

solid angle. See SOLID. spherical angle. The figure formed at the intersection of two great circles on a sphere; the difference in direction of the arcs of two great ...

Google previewEncyclopaedia of Mathematics (set) (1994)

by Michiel Hazewinkel

A solid angle is a part of space bounding a ...

Google previewFocal Illustrated Dictionary of Telecommunications (2013)

by Xerxes Mazda, Fraidoon Mazda

radiance: The radiant power at a point, measured per unit solid angle, per unit projected area. It is expressed in watts per ...

Google previewEncyclopedic Dictionary of Pyrotechnics (2012)

(and Related Subjects) by K.L. Kosanke, Barry T. Sturman, Robert M. Winokur, B.J. Kosanke

SOLID ANGLE – (Symbol: Ω) – An angle measured in three-dimensional space. A solid angle has steradians as its units (abbreviated sr). A solid angle (Ω, in steradians) is numerically equal to the surface area (s) of the projection of that solid ...

Google previewLewis' Dictionary of Occupational and Environmental Safety and Health (1999)

by Jeffrey Wayne Vincoli

solid angle Method for Determining Whether a Material is a Liquid or Solid." solid angle That part of the space bounded by a moving straight line (the generator) issuing from a single point (the vertex) and moving to all points on an arbitrary ...

Google previewCRC Concise Encyclopedia of Mathematics, Second Edition (2002)

by Eric W. Weisstein

Solid Angle Defined as the SURFACE AREA V of a UNIT SPHERE which is subtended by a given object S. Writing the...

Google previewThe Focal Encyclopedia of Photography (2013)

by Michael R. Peres

Radiant intensity is power per unit solid angle (d/d ) and measured in Wsr1. sr is the...

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Anagrams of SOLID ANGLE

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