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dihedral angle

American  

noun

Geometry.
  1. the angle between two planes in a dihedron.

  2. dihedron.


Etymology

Origin of dihedral angle

First recorded in 1820–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It is not necessary to dwell at length upon the dihedral angle, except to show the analogy between it and the plane angle.

From The Teaching of Geometry by David Eugene Smith

The locus of a point equidistant from the faces of a dihedral angle is the plane bisecting the angle.

From The Teaching of Geometry by David Eugene Smith

Generally speaking, however, the machines of the 1909-1912 period relied for what automatic stability they had on the principle of the dihedral angle, or flat V, both longitudinally and laterally.

From A History of Aeronautics by Evelyn Charles Vivian

It comprises thirteen cells and occupies a dihedral angle.

From Bramble-Bees and Others by Alexander Teixeira de Mattos

The Dihedral Board.—Another method of securing the dihedral angle, and also the angle of incidence, is by means of the dihedral board.

From The Aeroplane Speaks Fifth Edition by H. (Horatio) Barber

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