Reading
Shortcuts
Home
All Articles
Read from Another Site
Sources
Wikipedia
Simple Wikipedia
VOA Learning English
Futurity
The Conversation
MIT News
Harvard Gazette
Cambridge News
YDS/YÖKDİL Passages
Topics
Technology
Engineering
Business
Economics
Human
Health
Energy
Biology
Nature
Space
Log in
Sign up
2.13
History
Add
irradiance
noun
[ ɪˈreɪdɪəns ]
• the flux of radiant energy per unit area (normal to the direction of flow of radiant energy through a medium).
• the fact of shining brightly.