illumination

[ih-loo-muh-ney-shuhn]
noun
1.
an act or instance of illuminating.
2.
the fact or condition of being illuminated.
3.
a decoration of lights, usually colored lights.
4.
Sometimes, illuminations. an entertainment, display, or celebration using lights as a major feature or decoration.
5.
intellectual or spiritual enlightenment.
6.
Also called illuminance, intensity of illumination. Optics. the intensity of light falling at a given place on a lighted surface; the luminous flux incident per unit area, expressed in lumens per unit of area.
7.
a supply of light: a source of illumination.
8.
decoration of a manuscript or book with a painted design in color, gold, etc.
9.
a design used in such decoration.

Origin:
1300–50; Middle English < Medieval Latin illūminātiōn- (stem of illūminātiō) spiritual enlightenment (Latin: illustriousness, glory) See illuminate, -ion

illuminational, adjective
nonillumination, noun
preillumination, noun
reillumination, noun


5. knowledge, revelation, insight, wisdom.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To illumination
Collins
World English Dictionary
illumination (ɪˌluːmɪˈneɪʃən)
 
n
1.  the act of illuminating or the state of being illuminated
2.  a source of light
3.  chiefly (Brit) (often plural) a light or lights, esp coloured lights, used as decoration in streets, parks, etc
4.  spiritual or intellectual enlightenment; insight or understanding
5.  the act of making understood; clarification
6.  decoration in colours, gold, or silver used on some manuscripts or printed works
7.  physics another name (not in technical usage) for illuminance
 
illumi'national
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

illumination
mid-14c., "spiritual enlightenment," from O.Fr. illumination, from L. illuminationem (nom. illuminatio), from illuminare "to throw into light," from in- "in" (with assimilation of -n- to the following consonant) + lumen (gen. luminis) "light." Meaning "the action of lighting" is from 1560s. Illuminate
(M.E. enlumyen) originally meant "decorate written material with gold, silver, bright colors;" sense of "shining light on" first recorded 1560s. (Illumine in this sense is from late 14c.)
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
Candles offer light, which is different from illumination.
The gentle illumination makes place-names and information easy to read, and
  also makes it a great night-light.
Researchers claim the lighting system maximizes light distribution and provides
  more uniform illumination.
The light is coming from the side and is low enough to provide illumination
  beneath the hat.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature