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luminous

[loo-muh-nuh s] /ˈlu mə nəs/
adjective
1.
radiating or reflecting light; shining; bright.
2.
lighted up or illuminated; well-lighted:
the luminous ballroom.
3.
brilliant intellectually; enlightened or enlightening, as a writer or a writer's works:
a luminous concept; luminous prose.
4.
clear; readily intelligible:
a concise, luminous report.
Origin
late Middle English
1400-1450
1400-50; late Middle English < Latin lūminōsus. See lumen, -ous
Related forms
luminously, adverb
luminousness, noun
nonluminous, adjective
nonluminously, adverb
nonluminousness, noun
self-luminous, adjective
semiluminous, adjective
semiluminously, adverb
semiluminousness, noun
unluminous, adjective
unluminously, adverb
unluminousness, noun
Synonyms
1. lucid, radiant, resplendent, brilliant. 3. bright, intelligent. 4. understandable, perspicuous, lucid.
Antonyms
1, 2. dark. 3. stupid. 4. obscure.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for luminously

luminous

/ˈluːmɪnəs/
adjective
1.
radiating or reflecting light; shining; glowing: luminous colours
2.
(not in technical use) exhibiting luminescence: luminous paint
3.
full of light; well-lit
4.
(of a physical quantity in photometry) evaluated according to the visual sensation produced in an observer rather than by absolute energy measurements: luminous flux, luminous intensity Compare radiant
5.
easily understood; lucid; clear
6.
enlightening or wise
Derived Forms
luminously, adverb
luminousness, noun
Word Origin
C15: from Latin lūminōsus full of light, from lūmen light
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for luminously

luminous

adj.

early 15c., "full of light," from Latin luminosus "shining, full of light," from lumen (genitive luminis) "light," related to lucere "to shine" (see light (n.)). Related: Luminously.

Online Etymology Dictionary, © 2010 Douglas Harper
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luminously in Medicine

luminous lu·mi·nous (lōō'mə-nəs)
adj.
Emitting light, especially emitting self-generated light.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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