Definition of radian in English:

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radian

Pronunciation: /ˈreɪdɪən/

noun

Geometry
A unit of measurement of angles equal to about 57.3°, equivalent to the angle subtended at the centre of a circle by an arc equal in length to the radius.
Example sentences
  • The inverse of the radius of the circle equals the curvature in radians / m.
  • The sliding displacement between doublets may be found by multiplying the shear angle, in radians, by the interdoublet distance.
  • Given that the field oscillates at 60Hz, this gives me a phase angle of 0.4PI radians between samples.

Words that rhyme with radian

Acadian, Akkadian, Arcadian, Barbadian, Canadian, circadian, Grenadian, Hadean, Orcadian, Palladian, steradian

For editors and proofreaders

Line breaks: ra¦dian

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