Definition of radiance in English:

radiance

Syllabification: ra·di·ance
Pronunciation: /ˈrādēəns
 
/

noun

1Light or heat as emitted or reflected by something: the radiance of the sunset dwindled and died
More example sentences
  • As the light shone, its radiance blazed from one end of the universe to the other.
  • The emphasis shifts from bright surfaces and brilliant sparkle to the soft radiance of inner light, exploring the complexities, activities and possibilities of a thousand points of light.
  • Mother-of-pearl glows and its radiance diffuses a luminous light.
Synonyms
1.1Great happiness, apparent in someone’s expression or bearing: the radiance of the bride’s smile
More example sentences
  • I fell in love with his radiance, his charm, his personality but most of all the way he was one of the only guys I had ever met who cared about others as much as he cared about himself.
  • They held so much emotion in them that Darren sometimes wanted to take a picture of his lovely friend, as if to somehow capture the radiance of her expression.
  • Even Mike's eyes were jubilant; his newfound radiance made me think of the fear that I had just previously seen in him.
Synonyms
1.2A glowing quality of the skin, especially as indicative of good health or youth.
More example sentences
  • She had gained weight and though her skin lost its glowing radiance, it wasn't ghastly pale anymore.
  • After a little while, I realized my face was looking a little dull, so I used some more product on my face to bring out the natural bold radiance of my ebony skin.
  • That means a bumper package of proteins, minerals and essential oils to revitalise the skin, promoting natural radiance.
2 Physics The flux of radiation emitted per unit solid angle in a given direction by a unit area of a source.
More example sentences
  • The downward radiance measured by the infrared interferometer is a combination of thermal emission by atmospheric water vapor and by the cloud ice mass.
  • This irradiance and the radiance in the opposite direction were then inserted into equation to calculate the ideal reflectance.
  • The effect is most prominent at shallow depths, where the light field is usually asymmetric, due to highly directional and intense solar radiance.

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