radian English

Meaning radian meaning

What does radian mean?

radian

— 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)

Synonyms radian synonyms

What other words have the same or similar meaning as radian?

radian English » English

rad

source of light

source

radian measure

photosource

optical source

luminous source

light source luminaire

light source

illuminating source

illuminant

curvature

actinium