Definition of illumination
1 : the action of illuminating or state of being illuminated: such asa : spiritual or intellectual enlightenmentb (1) : a lighting up (2) : decorative lighting or lighting effectsc : decoration by the art of illuminating
2 : the luminous flux per unit area on an intercepting surface at any given point
3 : one of the decorative features used in the art of illuminating or in decorative lighting
Examples of illumination in a Sentence
When taking photographs indoors, use a flash for illumination.
They traveled to the temple in search of spiritual illumination.
an old manuscript with beautiful illuminations
Recent Examples of illumination from the Web
He was also cited for no rear license plate illumination.
Ambient side-illumination from glass perimeter walls and clerestory windows makes lighting art difficult.
Welsh School of Architecture, Cardiff University, Wales WHY: The geodesic dome, 8 meters in diameter, can simulate most kinds of natural light, letting architects test models and design buildings less dependent on artificial illumination.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'illumination'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of illumination
ILLUMINATION Defined for English Language Learners
Definition of illumination for English Language Learners
: light that comes into a room, that shines on something, etc.
: knowledge or understanding
: a gold or colored decoration in an old book
ILLUMINATION Defined for Kids
Definition of illumination for Students
: the action of lighting something : the state of being lighted
Medical 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
illuminate\il-ˈü-mə-ˌnāt\play transitive verb
Seen and Heard
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