Definition of Radian

1. Noun. 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).

Exact synonyms: Rad
Generic synonyms: Angular Unit
Terms within: Milliradian

Definition of Radian

1. n. An arc of a circle which is equal to the radius, or the angle measured by such an arc.

Definition of Radian

1. a unit of angular measure [n -S]

Medical Definition of Radian

1. An arc of a circle which is equal to the radius, or the angle measured by such an arc. Origin: From Radius. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Radian

radial pulse
radial pulse
radial recurrent artery
radial reflex
radial scar
radial sclerosing lesion
radial spoke
radial styloid tendovaginitis
radial symmetry
radial tire
radial tuberosity
radial vein
radial veins
radial velocity
radian (current term)
radian (current term)
radiance
radiances
radiancies
radiancy
radians
radiant
radiant
radiantly
radiants
radiant energy
radiant energy
radiant flux
radiant heat
radiant heating

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