constantradiance
nounUK /ˈkɒnstənt ˈreɪdiəns/
US /ˈkɑːnstənt ˈreɪdiəns/
A bright light that never stops shining.
The constantradiance of the sun keeps our planet warm.
RELATED WORDS
OTHER MEANINGS
2. A steady and unchanging cheerfulness that a person shows.
Her constantradiance made everyone in the room feel happy.
3. In physics, light or energy that stays the same over time.
The sensor measured the constantradiance of the lamp for hours.
4. A lasting quality of being bright or hopeful.
The constantradiance of his smile never faded.