Aura vs. Radiance

Auranoun

Distinctive atmosphere or quality associated with something.

Auranoun

(parapsychology) An invisible force surrounding a living creature.

Auranoun

(medicine) Perceptual disturbance experienced by some migraine sufferers before a migraine headache.

Auranoun

(medicine) Telltale sensation experienced by some people with epilepsy before a seizure.

Auranoun

Any subtile, invisible emanation, effluvium, or exhalation from a substance, as the aroma of flowers, the odor of the blood, a supposed fertilizing emanation from the pollen of flowers, etc.

Auranoun

The peculiar sensation, as of a light vapor, or cold air, rising from the trunk or limbs towards the head, a premonitory symptom of epilepsy or hysterics.

Auranoun

a sensation (as of a cold breeze or bright light) that precedes the onset of certain disorders such as a migraine attack or epileptic seizure

Auranoun

an indication of radiant light drawn around the head of a saint

Auranoun

a distinctive but intangible quality surrounding a person or thing;

Radiancenoun

The quality of being radiant, shining, bright or splendid.

Radiancenoun

(physics) The flux of radiation emitted per unit solid angle in a given direction by a unit area of a source.

Radiancenoun

The quality of being radiant; brilliancy; effulgence; vivid brightness; as, the radiance of the sun.

Radiancenoun

the amount of electromagnetic radiation leaving or arriving at a point on a surface

Radiancenoun

the quality of being bright and sending out rays of light

Radiancenoun

an attractive combination of good health and happiness;

Radiance

In radiometry, radiance is the radiant flux emitted, reflected, transmitted or received by a given surface, per unit solid angle per unit projected area. Spectral radiance is the radiance of a surface per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength.