luminousness

lu·mi·nous  (lm-ns)

adj.

1. Emitting light, especially emitting self-generated light.

2. Full of light; illuminated. See Synonyms at bright.

3.

a. Easily comprehended; clear: luminous prose.

b. Enlightened and intelligent; inspiring: luminous ideas.

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[Middle English, from Old French lumineux, from Latin lminsus, from lmen, lmin-, light; see leuk- in Indo-European roots.]

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lumi·nous·ly adv.

lumi·nous·ness n.

Thesaurus

Noun

1.

luminousness - the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun" brightness level, luminance, luminosity, brightness, light physical property - any property used to characterize matter and energy and their interactions illuminance, illumination - the luminous flux incident on a unit area incandescence - light from heat glow, luminescence - light from nonthermal sources