Medical Dictionary

illumination

noun il·lu·mi·na·tion \il-ˌü-mə-ˈnā-shən\

Definition of ILLUMINATION

1
:  the action of supplying or brightening with light or the resulting state
2
:  the luminous flux per unit area on an intercepting surface at any given point—called also illuminance
il·lu·mi·nate \il-ˈü-mə-ˌnāt\ transitive verb, il·lu·mi·nat·ed il·lu·mi·nat·ing
March 26, 2015
verdigris Hear it
A green deposit formed on some metals
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears