| English Dictionary |
LUMINESCENT
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| IPA (US): |  |
Dictionary entry overview: What does luminescent mean?
• LUMINESCENT (adjective)
The adjective LUMINESCENT has 1 sense:
1. emitting light not caused by heat
Familiarity information: LUMINESCENT used as an adjective is very rare.
Dictionary entry details
Sense 1
Meaning:
Emitting light not caused by heat
Similar:
light (characterized by or emitting light)
Derivation:
luminesce (be or become luminescent; exhibit luminescence)
luminescence (light from nonthermal sources)
luminescence (light not due to incandescence; occurs at low temperatures)
Context examples
Organic molecules made of carbon and hydrogen, called polycyclic aromatic hydrocarbons (PAHs), are excited by interstellar radiation and become luminescent at wavelengths near 8.0 microns, giving the nebula its reddish features.
('Space Butterfly' Is Home to Hundreds of Baby Stars, NASA)
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