illumination

noun
il·​lu·​mi·​na·​tion | \ i-ˌlü-mə-ˈnā-shən How to pronounce illumination (audio) \

Definition of illumination

1 : the action of illuminating or state of being illuminated: such as
a : spiritual or intellectual enlightenment
b(1) : a lighting up
(2) : decorative lighting or lighting effects
c : 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

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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
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Recent Examples on the Web Black Diamond Sport 350 Headlamp for $30 ($10 off) Wear your illumination on your forehead to keep your hands free for setting up a tent in the dark or packing for a pre-dawn departure. Matt Jancer, Wired, 6 Sep. 2021 The high output, portability, convenient charging, and long runtime can meet all your illumination needs for home, travel, and the great outdoors. Maren Estrada, BGR, 7 Apr. 2021 Writing doesn’t offer her illumination or solace, but her devotion to the practice speaks to her desire to be seen. Washington Post, 11 Mar. 2021 Black Diamond Sport 350 Headlamp for $30 ($10 off) Wear your illumination on your forehead to keep your hands free for setting up a tent in the dark or packing for a pre-dawn departure. Matt Jancer, Wired, 3 Sep. 2021 The moon will reach peak illumination at 8:02 a.m. Eastern time Sunday and appear close to full after dusk that day. Kristen Rogers, Ashley Strickland And Sarah Molano, CNN, 21 Aug. 2021 The Buck Moon will be visible on Friday night, with peak illumination coming at 10:37 p.m. EDT, according to NASA. Rachel Desantis, PEOPLE.com, 22 July 2021 Because red light is readily absorbed by seawater, the Eye uses an ultrasensitive black-and-white camera that amplifies the dim far-red-light illumination and is also sensitive enough to record any bioluminescent creatures swimming within range. Ferris Jabr, Scientific American, 5 Aug. 2010 The moon will reach peak illumination at 10:37 PM Eastern Time. USA TODAY, 23 July 2021

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.

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First Known Use of illumination

14th century, in the meaning defined at sense 1

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Learn More About illumination

Time Traveler for illumination

Time Traveler

The first known use of illumination was in the 14th century

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Dictionary Entries Near illumination

illuminating projectile

illumination

illuminatism

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Statistics for illumination

Last Updated

19 Sep 2021

Cite this Entry

“Illumination.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/illumination. Accessed 19 Sep. 2021.

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More Definitions for illumination

illumination

noun

English Language Learners Definition of illumination

: light that comes into a room, that shines on something, etc.
: knowledge or understanding
: a gold or colored decoration in an old book

illumination

noun
il·​lu·​mi·​na·​tion | \ i-ˌlü-mə-ˈnā-shən How to pronounce illumination (audio) \

Kids Definition of illumination

: the action of lighting something : the state of being lighted

illumination

noun
il·​lu·​mi·​na·​tion | \ il-ˌü-mə-ˈnā-shən How to pronounce illumination (audio) \

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

Other Words from illumination

illuminate \ il-​ˈü-​mə-​ˌnāt How to pronounce illumination (audio) \ transitive verb illuminated; illuminating

More from Merriam-Webster on illumination

Nglish: Translation of illumination for Spanish Speakers

Britannica English: Translation of illumination for Arabic Speakers

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