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nounthe 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)
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Definition that contains radian
- glory an indication of radiant light drawn around the head of a saint
- glory brilliant radiant beauty
- flash a sudden intense burst of radiant energy
- angle the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians
- beam smile radiantly; express joy through one's facial expression
- transmission the fraction of radiant energy that passes through a substance
- grilled cooked by radiant heat (as over a grill)
- lm a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
- halo an indication of radiant light drawn around the head of a saint
- luminous softly bright or radiant