Word:

Radian

Ra´di`an   Pronunciation: rā´dĭ`an
n.1.(Math.) An arc of a circle which is equal to the radius, or the angle measured by such an arc.
Noun1.radian - the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
Synonyms: rad
angular unit, milliradian, rad
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Radial
radial artery
radial asymmetry
Radial engine
radial keratotomy
radial nerve
radial pulse
radial symmetry
Radial tire
radial vein
radial velocity
radial-ply
radial-ply tire
Radiale
Radially
radially symmetrical
-- Radian --
Radiance
radiancy
Radiant
radiant energy
Radiant engine
radiant flux
Radiant heat
radiant heating
Radiant point
Radiantly
Radiary
Radiata
Radiate
Radiate-veined
Radiated
Radiately
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