radian

Nouns

(n) 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) rad,

Synonyms

rad

Words of close approximity

radial

radio radix

radial radish radium radius

radiance radiancy radiant radiant energy radiant flux radiant heating radiantly